Erratic Environment May Be Key to Human Evolution

At Olduvai Gorge, where excavations helped to confirm Africa was the cradle of humanity, scientists now find the landscape once fluctuated rapidly, likely guiding early human evolution.These findings suggest that key mental developments within the human lineage may have been linked with a highly variable environment, researchers added.

Olduvai Gorge is a ravine cut into the eastern margin of the Serengeti Plain in northern Tanzania that holds fossils of hominins — members of the human lineage. Excavations at Olduvai Gorge by Louis and Mary Leakey in the mid-1950s helped to establish the African origin of humanity.

The Great Drying?

To learn more about the roots of humanity, scientists analyzed samples of leaf waxes preserved in lake sediments at Olduvai Gorge, identifying which plants dominated the local environment around 2 million years ago. This was about when Homo erectus, a direct ancestor of modern humans who used relatively advanced stone tools, appeared.

“We looked at leaf waxes, because they’re tough, they survive well in the sediment,” researcher Katherine Freeman, a biogeochemist at Pennsylvania State University, said in a statement.

After four years of work, the researchers focused on carbon isotopes — atoms of the same element with different numbers of neutrons — in the samples, which can reveal what plants reigned over an area. The grasses that dominate savannasengage in a kind of photosynthesis that involves both normal carbon-12 and heavier carbon-13, while trees and shrubs rely on a kind of photosynthesis that prefers carbon-12. (Atoms of carbon-12 each possess six neutrons, while atoms of carbon-13 have seven.)

Scientists had long thought Africa went through a period of gradually increasing dryness — called the Great Drying — over 3 million years, or perhaps one big change in climate that favored the expansion of grasslands across the continent, influencing human evolution. However, the new research instead revealed “strong evidence for dramatic ecosystem changes across the African savanna, in which open grassland landscapes transitioned to closed forests over just hundreds to several thousands of years,” researcher Clayton Magill, a biogeochemist at Pennsylvania State University, told LiveScience. [Know Your Roots? Take Our Human Evolution Quiz]

The researchers discovered that Olduvai Gorge abruptly and routinely fluctuated between dry grasslands and damp forests about five or six times during a period of 200,000 years.

“I was surprised by the magnitude of changes and the rapid pace of the changes we found,” Freeman told LiveScience. “There was a complete restructuring of the ecosystem from grassland to forest and back again, at least based on how we interpret the data. I’ve worked on carbon isotopes my whole career, and I’ve never seen anything like this before.”

Losing water

The investigators also constructed a highly detailed record of water history in Olduvai Gorge by analyzing hydrogen isotope ratios in plant waxes and other compounds in nearby lake sediments. These findings support the carbon isotope data, suggesting the region experienced fluctuations in aridity, with dry periods dominated by grasslands and wet periods characterized by expanses of woody cover.

“The research points to the importance of water in an arid landscape like Africa,” Magill said in a statement. “The plants are so intimately tied to the water that if you have water shortages, they usually lead to food insecurity.”

The research team’s statistical and mathematical models link the changes they see with other events at the time, such as alterations in the planet’s movement. [50 Amazing Facts About Earth]

“The orbit of the Earth around the sun slowly changes with time,” Freeman said in statement. “These changes were tied to the local climate at Olduvai Gorge through changes in the monsoon system in Africa.”

Earth’s orbit around the sun can vary over time in a number of ways — for instance, Earth’s orbit around the sun can grow more or less circular over time, and Earth’s axis of spin relative to the sun’s equatorial plane can also tilt back and forth. This alters the amount of sunlight Earth receives, energy that drives Earth’s atmosphere. “Slight changes in the amount of sunshine changed the intensity of atmospheric circulation and the supply of water. The rain patterns that drive the plant patterns follow this monsoon circulation. We found a correlation between changes in the environment and planetary movement.”

The team also found links between changes at Olduvai Gorge and sea-surface temperatures in the tropics.

“We find complementary forcing mechanisms — one is the way Earth orbits, and the other is variation in ocean temperatures surrounding Africa,” Freeman said.

These findings now shed light on the environmental shifts the ancestors of modern humans might have had to adapt to in order to survive and thrive.

“Early humans went from having trees available to having only grasses available in just 10 to 100 generations, and their diets would have had to change in response,” Magill said in a statement. “Changes in food availability, food type, or the way you get food can trigger evolutionary mechanisms to deal with those changes. The result can be increased brain size and cognition, changes in locomotion and even social changes — how you interact with others in a group.”

This variability in the environment coincided with a key period in human evolution, “when the genus Homo was first established and when there was first evidence of tool use,” Magill said.

The researchers now hope to examine changes at Olduvai Gorge not just across time but space, which could help shed light on aspects of early human evolution such as foraging patterns.

Magill, Freeman and their colleague Gail Ashley detailed their findings online Dec. 24 in two papers in the journal Proceedings of the National Academy of Sciences.

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Climate change: No consensus needed

Lake Cachet II in Aysen, Chilean Patagonia, disappeared because of rising temperatures driven by climate change, experts say.

STORY HIGHLIGHTS

• Tseming Yang: Result of Doha climate change conference less than desirable


• Yang: It's time to abandon the myth that a consensus solution is the best approach


• He says the 25 major carbon emitters should work out an agreement among themselves


• Yang: Smaller, focused discussions may be better than large, U.N.-style gatherings

Editor's note: Tseming Yang, former deputy general counsel at the Environmental Protection Agency, is professor of law at Santa Clara University Law School.

(CNN) -- The Doha climate change conference this year was the most significant in nearly 20 years of gatherings under the U.N. Framework Convention process aimed at staving off future global warming disaster.

Since carbon dioxide emission limits agreed to under the 1997 Kyoto Protocol were to expire at the stroke of midnight on December 31, 2012, it was critical that the international community agreed to extend those obligations and to continue talks about future emission cuts.

But the outcome fell far short of what will be necessary to keep the world's average temperature from rising more than 2 degrees Celsius in the foreseeable future.

Under the Doha arrangement, 17 of the 25 biggest carbon emitting countries (including China, the United States, Russia and India) did not commit to any legally binding emission limits. The countries that did agree to extend and deepen their Kyoto emission reductions, including the European Union, Australia and Eastern Europe, make up only about 15% of the world's emissions. That seems like a rather meager return on the investment of time and effort over the past years.

But there is one silver lining.

The world's top 20 carbon emitters together make up about 77% of emission and account for about 4.3 billion people, which is about 62% of the global population. The remaining 170 or so countries account for just over 20% of emissions.

As often is the case, these negotiations over climate have come to symbolize epic David and Goliath struggles pitting poor developing countries against recalcitrant government officials from rich countries. Lobbying efforts, shaming tactics, and staging public demonstrations have been the slingshots of choice. One result is that more people are paying attention to environmental issues.

Nonetheless, it is time to abandon the myth that a consensus solution is necessarily the best approach. The unfortunate reality is that little can get done right now. It's like having hundreds of cooks with hundreds of different recipes attempting to prepare one meal in the same small kitchen. After two decades of hard work, it is time to consider reducing the number of cooks.

A better alternative to a United Nations-style conference would be for the 25 major emitters to come to an agreement just among themselves about their mutual commitments to deal with climate change effectively.

In other words, get the 25 cooks to work together on the main meal. The hundreds of other cooks ought to step out of the kitchen.

Some smaller, focused discussions have already started, such as in the Major Economies Forum. Imagine what kind of deals on cutting emissions would be possible just among China, India and the United States -- the top three emitters in the world respectively. Imagine a deal involving emission sources in China, which has some of the world's most polluting coal-fired power plants, and California, which is on a course to become one of the most stringently controlled states in carbon emissions.

Of course, there are no guarantees for success. But discussions within such a smaller group would allow government leaders to confront the realities of climate change and engage in direct horse-trading without the static of thousands of other voices desiring to load their issues into the deal.

Let's face it -- we are way beyond the time for finding an ideal solution. Every year the world waits to take further concrete steps to cut emissions, the atmosphere will be loaded with millions of tons more carbon dioxide that will stay for a century. And the job of limiting global warming to 2 degrees Celsius will be more out of reach.

At the best, gatherings like the one in Doha dangle a tantalizing mirage of achieving a sustainable future. At the worst, they give cover to governments that would rather avoid the hard choices they ultimately will have to make.

After one more expensive and time-consuming round of talks, it's time to be honest with what can really be accomplished in these U.N.-style gatherings.

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The opinions expressed in this commentary are solely those of Tseming Yang.

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Tornadoes, snow hit the South

A heavy snowstorm that blanketed Texas and Oklahoma is moving northeast on Wednesday. Gulf Coast states are recovering from heavy winds and twisters. (Dec. 26)

MOBILE, Alabama (Reuters) - A major winter storm system swept through the southern United States on Tuesday, spawning tornadoes in several states and killing two people in weather-related road accidents.

The National Weather Service (NWS) said a tornado struck Mobile, Alabama, home to about 200,000 people, at about 5 p.m. local time (2300 GMT). There were reports of damage to trees and widespread power outages, along with some structural damage, but no injuries or fatalities.

Tornadoes also touched down in Mississippi, Texas and Louisiana, flattening houses and causing some injuries, according to the NWS.

The wild Christmas weather was expected to continue into early Wednesday - the NWS' Storm Prediction Center forecasted the development of "a few strong tornadoes and thunderstorm wind damage over parts of the southeast" this evening and overnight.

It warned that tornadoes at night at this time of year can be particularly dangerous because they are usually fast-moving and obscured by rain and darkness. Areas mostly likely to be hit by strong storms include southern and eastern Alabama, the Florida Panhandle and southwest Georgia, the NWS warned.

Tuesday's storms also contributed to a 21-vehicle pile-up that shut down a major highway in Oklahoma City and tens of thousands of power outages.

A Texas man died after an accident involving a tree in the road, and another person died in a weather-related accident on I-44 in Oklahoma, according to local authorities.

The storm was expected to evolve into a blizzard from Arkansas to southern Illinois on Tuesday night, with snowfall of up to a foot in some areas, according to Accuweather.com.

Accuweather.com senior meteorologist Kristina Pydynowski warned on the website that travel will be "extremely treacherous, if not impossible, as the snow clogs roads, such as interstates 24, 55 and 57, and the blowing snow severely lowers visibility."

The Indiana governor's office issued an advisory Tuesday evening that "non-essential employees" who live in areas where snow emergencies have been declared do not have to come to work.

The snowstorm will shift on Wednesday to the eastern Great Lakes and northeastern region, with a blizzard warning in effect for Cleveland starting at 7 a.m. on Wednesday (1200 GMT), forecasters said. Cleveland could get up to a foot of snow, according to the NWS.

Southern Indiana is under a blizzard warning starting early Wednesday morning, according to NWS meteorologist Crystal Pettet. Indianapolis could see its biggest snowfall in four years, with a possibility of 10 to 12 inches of snow.

"Conditions should be pretty bad in time for rush hour," Pettet said.

CHRISTMAS SNOWFALL

In the town of McNeill in southern Mississippi, an apparent tornado destroyed 12 homes and injured eight people, though none of the injuries appear life-threatening, said Danny Manley, director of the Pearl River County Emergency Management Agency.

Manley said the homes could not be rebuilt, as some had lost roofs and their top stories and one was smashed by a tree.

Another apparent tornado hit Centreville, Mississippi, in the southwestern part of the state, injuring one person, destroying a trailer and heavily damaging other homes and buildings, according to Tim Destri, a NWS meteorologist in New Orleans.

A tornado destroyed a building 13 miles southeast of Crockett, Texas, and a bank lost a section of its roof, according to Accuweather.com.

Freezing drizzle overnight led to 10 separate collisions on Interstate 40 in Oklahoma City early on Tuesday, said Betsy Randolph, a spokeswoman for the Oklahoma Highway Patrol. The city also got a rare Christmas snowfall.

The 21-vehicle pile-up included three tractor-trailers and shut down the westbound lanes for about five hours, she said. Twelve people were taken to hospitals, and troopers were checking on the severity of their injuries.

Ahead of the storm's path, parts of eastern West Virginia are under a winter storm warning. Ice accumulations of up to half an inch are expected in higher elevations, the NWS said.

(Reporting by Kaija Wilkinson, Ian Simpson and Mary Wisniewski; Editing by Sandra Maler, Todd Eastham and Paul Simao)

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Egypt's leader signs contentious constitution into law

CAIRO (Reuters) - Egyptian President Mohamed Mursi signed into law a new constitution shaped by his Islamist allies, which he says will help end political turmoil and allow him to focus on fixing the fragile economy.

Anxiety about a deepening political and economic crisis has gripped Egypt in past weeks, with many people rushing to buy dollars and take out their savings from banks. The government has imposed new restrictions to reduce capital flight.

The new charter, which the secularist opposition says betrays Egypt's 2011 revolution by dangerously mixing religion and politics, has polarized the Arab world's most populous nation and prompted occasionally violent protest on the streets.

Results announced on Tuesday showed Egyptians had approved the text with about 64 percent of the vote, paving the way for a new parliamentary election in about two months.

The win in the referendum is the Islamists' third straight electoral victory since veteran autocrat Hosni Mubarak was toppled in 2011, following parliamentary elections last year and the presidential vote that brought Mursi to power this year.

Mursi's government, which has accused opponents of damaging the economy by prolonging political upheaval, now faces the tough task of building a broad consensus as it prepares to impose unpopular austerity measures to prop up the economy.

The presidency said on Wednesday that Mursi had signed a decree enforcing the charter overnight after the official announcement of the result of the referendum approving the basic law, Egypt's first constitution since Mubarak's overthrow.

The opposition has condemned the new basic law as too Islamist, saying it could allow clerics to intervene in the lawmaking process and leave minority groups without proper legal protection. It also said the referendum was marred by widespread electoral violations.

Nevertheless, major opposition groups have not called for new protests, suggesting that weeks of civil unrest over the constitution may be subsiding now that it has passed.

Mursi, catapulted into power by his Islamist allies this year, believes adopting the text quickly and holding the vote for a permanent new parliament will help end a protracted period of turmoil and uncertainty that has wrecked the economy.

Mursi's government argues the constitution offers enough protection to all groups, and that many Egyptians are fed up with street protests that have prevented a return to normality and distracted the government from focusing on the economy.

The constitution gives Egypt's upper house of parliament, which is dominated by Islamists, full legislative powers until a vote for a new lower house is held. The chamber convened on Wednesday for the first time since the constitution's adoption.

CONCERNS

The government has begun a series of meetings with businessmen, trade unions, non-governmental organizations and other groups to persuade them of the need for tax increases and spending cuts to resolve the country's financial crisis.

Mursi has committed to such austerity measures to receive loans from the International Monetary Fund.

While stressing the importance of political stability to heal the economy, Mursi's government has sought to play down economic woes and appealed for unity in the face of hardship.

"The government calls on the people not to worry about the country's economy," Parliamentary Affairs Minister Mohamed Mahsoub told the upper house in a speech.

"We are not facing an economic problem but a political one and it is affecting the economic situation. We therefore urge all groups, opponents and brothers, to achieve wide reconciliation and consensus."

Mursi is due to address the upper house on Saturday in a speech likely to be dominated by economic policy.

Sharpening people's concerns, the authorities imposed currency controls on Tuesday to prevent capital flight. Leaving or entering Egypt with more than $10,000 cash is now banned.

Al-Mal newspaper quoted Planning Minister Ashraf al-Araby as saying the government would not implement a series of planned tax increases until it completes a dialogue with different parts of society.

Adding to the government's long list of worries, Communications Minister Hany Mahmoud has resigned citing his "inability to adapt to the government's working culture".

The United States, which provides $1.3 billion a year in military aid plus other support to Egypt and sees it as a pillar of security in the Middle East, called on Egyptian politicians to bridge divisions and on all sides to reject violence.

"President Mursi, as the democratically elected leader of Egypt, has a special responsibility to move forward in a way that recognizes the urgent need to bridge divisions," State Department spokesman Patrick Ventrell said.

(Additional reporting by Patrick Werr; Writing by Maria Golovnina; Editing by Peter Graff)

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Yen on defensive on U.S. fiscal worry, helps Nikkei

TOKYO (Reuters) - Uncertainty over whether U.S. lawmakers will strike a deal by an end-of-year deadline to avert a severe fiscal retrenchment undermined the yen and bolstered Japanese shares on Tuesday in low volume, with many participants away on Christmas holiday.

The dollar rose to a 20-month high of 84.965 yen early on Tuesday in Asia, as Japanese markets caught up with global investors who had reacted overnight to incoming Japanese Prime Minister Shinzo Abe's weekend comments that raised the pressure on the Bank of Japan.

During a meeting on Tuesday with officials from Japan's major business lobby, Keidanren, Abe reiterated calls on the BOJ to conduct bold monetary easing to beat deflation by setting an inflation target of 2 percent.

The head of Abe's coalition partner said on Tuesday the coalition party and Abe had agreed to set a 2 percent inflation target and compile a large stimulus budget to help the economy return to growth and overcome deflation.

The yen has come under pressure as a result of expectations that the BOJ will be compelled to adopt more drastic monetary stimulus measures next year.

The dollar was expected to stay firm this week as investors repatriate dollars, and as the U.S. fiscal impasse is likely to continue to sap investor appetite for risky assets and raise the dollar's safe-haven appeal.

"The dollar is seen relatively well bid, with all focus on the fiscal cliff," said Yuji Saito, director of foreign exchange at Credit Agricole in Tokyo.

"Negotiations may be carried over the weekend, but markets still expect a deal to be struck by December 31. It is unthinkable that the U.S. will risk driving its economic growth sharply lower by not agreeing to avoid it."

U.S. lawmakers and President Barack Obama were on Christmas holiday and talks were unlikely to resume until later in the week.

House of Representatives Speaker John Boehner failed to gain support for a tax plan at the end of last week, raising fears that the United States may face the "fiscal cliff" of some $600 billion in automatic spending cuts and tax increases set to start on January 1.

Japan's Nikkei stock average <.n225> resumed trading after a three-day weekend with a 1.1 percent gain, recapturing the key 10,000 mark it ceded on Friday after Boehner's failure sparked a broad market sell-off and the Tokyo benchmark closed down 1 percent. The Nikkei was likely to be supported as long as the yen stayed weak. <.t/>

"Ongoing optimism about the weak yen is lifting hopes that exporters' earnings will be better than expected," said Hiroichi Nishi, general manager at SMBC Nikko Securities.

Analysts say a near-term correction may be possible as the index is now in "overbought" territory after gaining 16.2 percent over the last six weeks, hitting a nine-month high last Friday. Its 14-day relative strength index was at 72.34, above the 70 level that signals an overbought condition.

MSCI's broadest index of Asia-Pacific shares outside Japan <.miapj0000pus> nudged up 0.1 percent, driven higher by surging Shanghai shares, as most Asian bourses were shut for Christmas.

The Shanghai Composite Index <.ssec> soared over 2 percent to five-month highs as investors bought property stocks on mounting optimism about the sector. Taiwan shares <.twii> jumped 1.3 percent on gains in technology and financial shares.

Asset performance in 2012: http://link.reuters.com/muc46s

2012 commodities returns: http://link.reuters.com/faz36s

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U.S. HOLDS 2013 KEY

Goro Ohwada, president and CEO at Japan-based fund of hedge funds Aino Investment Corp, said investors were likely to focus on economic fundamentals and the United States for cues on investment direction in 2013.

"There is a feeling that an investment strategy based on economic fundamentals may finally work next year, with asset prices more closely reflecting fair value. The problem is, we don't know yet which asset is a better bet than others," Ohwada said, adding that oil and gold appeared to be near their highs.

Naohiro Niimura, a partner at research and consulting firm Market Risk Advisory, said commodities and energy prices will likely move in tight ranges in 2013, with investors eyeing political events, including the U.S. fiscal cliff outlook, Italian parliamentary election set for February 24-25, and Germany's elections in September.

"The macroeconomic policies taken this year around the world to support growth are expected to result in a moderate recovery in 2013 to reduce an excessive downside risk to prices. This will likely keep commodities, gold and energy prices near their highs," Niimura said.

(Additional reporting by Ayai Tomisawa in Tokyo; Editing by Edmund Klamann and Daniel Magnowski)

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Pagano back to coach Colts after cancer treatment

INDIANAPOLIS (AP) — Chuck Pagano stepped to the podium Monday, hugged his team owner, thanked his family for its support and wiped a tear from his eye.

He might, finally, turn out the lights in his office, too.

Nearly three months to the day after being diagnosed with leukemia, the Colts' first-year coach returned to a team eager to reunite with a boss healthy enough to go back to work.

"I told you my best day of my life was July 1, 1989," Pagano said, referring to his wedding date. "Today was No. 2. Getting to pull up, drive in, get out of my car, the key fob still worked. I was beginning to question whether it would or not. When I asked for Bruce to take over, I asked for him to kick some you-know-what and to do great. Damn Bruce, you had to go and win nine games? Tough act to follow. Tough act to follow. Best in the history of the NFL. That's what I have to come back to."

The comment turned tears into the laughter everyone expected on such a festive occasion.

For Pagano and the Colts, Monday morning was as precious as anyone could have imagined when Pagano took an indefinite leave to face the biggest opponent of his life, cancer.

In his absence, all the Colts was win nine of 12 games, make a historic turnaround and clinch a playoff spot all before Sunday's regular-season finale against Houston, which they pegged as the day they hoped to have Pagano back. If all goes well at practice this week, Pagano will be on the sideline for the first time since a Week 3 loss to Jacksonville.

Pagano endured three rounds of chemotherapy to put his cancer in remission.

That Pagano's return came less than 24 hours after Indy (10-5) locked up the No. 5 seed in the AFC and the day before Christmas seemed fitting, too.

"I know Chuck is ready for this challenge. In speaking to his doctor multiple times, I know that the time is right for him to grab the reins, get the head coaching cap on and begin the journey," owner Jim Irsay said. "It's been a miraculous story. It really is a book. It's a fairytale. It's a Hollywood script. It's all those things but it's real."

The reality is that he's returning to a vastly different team than the one he turned over to Arians, his long-time friend and first assistant coaching hire.

Back then, the Colts were 1-2 and most of the so-called experts had written them off as one of the league's worst teams. Now, they're ready to show the football world that they can be just as successful under Pagano as they were under Arians, who tied the NFL record for wins after a midseason coaching change.

Pagano also has changed.

The neatly-trimmed salt-and-pepper hair and trademark goatee that were missing in November have slowly returned, and the thinner man who appeared to be catching his breath during a postgame speech in early November, looked and sounded as good as ever Monday.

He repeatedly thanked fans for their prayers and letters, the organization and his family for their unwavering help and promised to provide comfort and support to other people who are facing similar fights. During one poignant moment that nearly brought out tears again, Pagano even recounted a letter sent to him by a 9-year-old child who suggested he suck on ice chips and strawberry Popsicles in the hospital and advised him to be nice to the nurses regardless of how he felt — and he never even paused.

"I feel great, my weight is back, my energy is back and again, it's just a blessing to be back here," Pagano said.

In the minds of Colts players and coaches, Pagano never really left.

He continually watched practice tape and game film on his computer, used phone calls and text messages to regularly communicate with players and occasionally delivered a pregame or postgame speech to his team.

"He texted me and called me so much, it was like he was standing there in my face every day," said receiver Reggie Wayne, who has been friends with Pagano since the two were working together at the University of Miami.

But the Colts found plenty of other ways to keep Pagano's battle in the forefront.

They began a fundraising campaign for leukemia research, calling it Chuckstrong. Players had stickers with the initials CP on their locker room nameplates, and Arians wore an orange ribbon on his baseball cap during games. Orange is the symbolic color for leukemia. At one point, nearly three dozen players shaved their heads to show their ailing coach they were with him.

That's not all.

Arians and first-year general manager Ryan Grigson decided to leave the lights on in Pagano's office until he returned. Pagano noted the team even installed plastic clips to make sure those lights were not mistakenly turned off while he was gone. Those clips were removed when Pagano arrived Monday morning.

And Arians said nobody sat in the front seat of the team bus.

"He's always been our head coach," Arians said.

So after getting medical clearance from his oncologist, Dr. Larry Cripe, to return with no restrictions, Pagano couldn't wait to get to the office Monday morning.

Arians arrived at 7 a.m., three hours early for the scheduled team meeting. By then, Pagano had already driven past the inflatable Colts player with the words "Welcome Back Chuck" printed on its chest and was back in his office preparing for the Texans.

Players showed up a couple of hours later, and when the torch was passed from Arians back to Pagano, players gave their returning coach a standing ovation that Wayne said was well-deserved.

All Pagano wants to do now is emulate the success Arians and his players have had this season.

"I asked him (Arians) if he would lead this team and this ballclub and this organization and take over the reins," Pagano said. "What a masterful, masterful job you did Bruce. You carried the torch and all you went out and did was win nine ballgames. You got us our 10th win yesterday and you got us into the playoffs. You did it with dignity and you did it with class. You're everything that I always knew you were and more."

___

Online: http://pro32.ap.org/poll and http://twitter.com/AP_NFL

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Astronauts Celebrate Christmas on Space Station

Christmas in orbit might not look exactly like the holidays on Earth, but the astronauts living on the International Space Station this holiday season try to make the orbiting science laboratory as homey as possible.

The six members of the station’s Expedition 34 crew, three of whom just arrived last week, will all be spending Christmas and New Years Day aboard the spacecraft, but that doesn’t mean they don’t get to celebrate. Hundreds of miles above the Earth’s surface, the spaceflyers will eat, exchange gifts, and be merry during Christmas and when welcoming in the New Year.  

The space station crew will be off duty for both Christmas Eve and Christmas. That means that they won’t need to work on any of the 110 experiments aboard the station, and they can take as much time for meals as they want, NASA spokeswoman Nicole Cloutier-Lamasters told SPACE.com.

The space station residents have a few different decorating options available to them. An earlier expedition left the crewmembers a Christmas tree and stockings made from nomex, a flame resistant fiber that’s safe to stow onboard.  [Holidays in Space: Astronaut Photo Album]

The week before Christmas was an eventful one for the orbital crew as well. Canadian Space Agency astronaut Chris Hadfield, NASA astronaut Tom Marshburn, and Russian cosmonaut Roman Romanenko arrived on Friday (Dec. 21), joining Kevin Ford of NASA, and cosmonauts Oleg Novitskiy and Evgeny Tarelkin to fill out the $ 100 billion science laboratory to its usual 6-person capacity.

The spaceflyers also have some presents to look forward to. The Progress 48 cargo freighter — a robotic Russian supply ship that launched in early August of this year— carried more than just basic supplies to the ISS. The Progress also brought holiday presents for the spaceflyers who’d be spending Yuletide in space.

As well as a traditional meal complete with turkey and candied yams, the crewmembers will also get the chance to video conference with their families. This is a particular treat because video chatting is usually possible only once a week, and involves a lot of planning for mission control and the spaceflyers.

Despite NASA’s best efforts to make the holidays in space as warm as they are on Earth, that doesn’t mean astronauts won’t get homesick.

Marshburn, for example, has a 10-year-old daughter.

“That’ll be tough, thinking about her waking up in the morning, enjoying things,” said Marshburn during a preflight interview with NASA, “but the fact is we’ve got some technology that’ll allow me, hopefully through an internet or I guess an internet protocol session, to be able to join in with them and see their faces and they can see me. It’ll be a little tough for me, as it would be for anybody, but I think the price is certainly well worth it, to be up there.”

Hadfield celebrated the holidays with his family before leaving for this, his second visit to the space station. Most of his family is spread around the world, Hadfield said during another preflight interview with NASA, so they celebrated the season early by flying to Kazakhstan to spend time with each other before his liftoff from the Baikonur Cosmodrome there. Hadfield is also an avid musician and guitar player, so music — and a guitar that lives on the station — will likely be a part of the Christmas celebration, Cloutier-Lamasters said. 

For his part, Romanenko said the prospect of a space Christmas is exciting.

“I think it will be a big adventure, a big moment in our space life,” Romanenko said in a NASA preflight interview. “And we’ll be dressing up, we’ll be decorating the station, we’ll put up a Christmas tree, maybe we’ll have some presents that will arrive on the cargo vehicles, which of course will make us very happy and will support us during this evening, this special time.”

You can send the International Space Station’s Expedition 34 crew a holiday card for Christmas and the New Year by visiting: http://www.nasa.gov/externalflash/postcard/

Follow Miriam Kramer on Twitter @mirikramer or SPACE.com @Spacedotcom. We’re also on Facebook & Google+.

Copyright 2012 SPACE.com, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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Six political lessons of 2012

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

2012: The year in pictures

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STORY HIGHLIGHTS

• Julian Zelizer: 2012 was a year of bitter domestic battles, turbulence overseas


• He says the weakness of GOP, renewed strength of liberalism were apparent


• Zelizer says the year also highlighted the influence of new immigrants in America


• Zelizer: Year ended with a tragic reminder about need to act on gun control

Editor's note: Julian Zelizer is a professor of history and public affairs at Princeton University. He is the author of "Jimmy Carter" and of the new book "Governing America."

(CNN) -- 2012 has been a tumultuous year in American politics. With the presidential election capping off the year, Americans have witnessed a series of bitter domestic battles and turbulent events overseas. As the year closes out, it is worth thinking about some of the most important lessons that politicians and voters can learn from this year as they prepare for 2013.

Here are six:

The Republican brand name is in trouble: The GOP took a drubbing in 2012. To be sure, Mitt Romney ran a problematic campaign. His inability to connect with voters and a number of embarrassing gaffes hurt the chances for Republicans to succeed.

Julian Zelizer

Just as important to the outcome was the party that Romney represented. Voters are not happy with the GOP. Public approval for the party has been extremely low. Congressional Republicans have helped to bring down the party name with their inability to compromise.

Recent polls show that if the nation goes off the fiscal cliff, the Republicans would be blamed. According to a survey by NBC and the Wall Street Journal, 65 percent of people asked for a short word or phrase to describe the GOP came up with something negative. The Republican Party was also the lowest-rated political institution.

The exit polls in November showed that the GOP is out of step with the electorate on a number of big issues, including immigration and gay marriage. If Republicans don't undertake some serious reforms and offer fresh voices, all the new messaging in the world won't help them as the competition starts for 2016.

Opinion: Madness in the air in Washington

America has grown more liberal on cultural and social issues: The election results confirmed what polls have been showing for some time. If the 1960s was a battle over conservative "traditional family values" and liberal ideals of social relations, liberals eventually won. Throughout the year, polls showed, for example, that the public was becoming more tolerant of gay marriage and civil unions. Americans support the view that gay sex should be legal by a margin of 2-1, compared to 1977 when the public was split.

In the election, same-sex marriage was approved in three states, voters in Wisconsin sent to office the first openly gay senator, and two states approved of referendums to legalize the recreational use of marijuana. Americans are accepting of social diversity, and expect that the pluralism of the electorate will be reflected by the composition of elected officials in Washington.

While there are some conservative voices who lament these changes and warn of a nation that is veering toward Sodom, a majority are more than comfortable that some of the taboos and social restrictions of earlier eras are fading and that we live in a nation which is more tolerant than ever before. These social and cultural changes will certainly raise more questions about restrictive practices and policies that remain in place while creating pressure for new kinds of leaders who are responsive to these changes.

The Middle East remains a tinderbox: In the years that followed Barack Obama's election, there was some hope that the Middle East could become a calmer region. When revolutions brought down some of the most notorious dictators in the region, many Americans cheered as the fervor for democracy seemed to be riding high.

But events in 2012 threw some cold water on those hopes. The Muslim Brotherhood won control of the Egyptian government. In Syria, the government brutally cracked down on opponents, reaching the point in December where Obama's administration has started to talk about the possibility of the al-Assad regime using chemical weapons, though the severity of the threat is unclear. The battles between Palestinians and Israel raged with rockets being fired into Tel Aviv and Israelis bombing targets in Gaza.

Although national attention is focused on domestic policy, it is clear that the Middle East has the capacity to command national attention at any moment and remains as explosive as ever.

Our infrastructure needs repair: Hurricane Sandy devastated the Northeast in November, leaving millions of Americans on the East Coast without power and with damaged property. Soon after the hurricane hit, New York Gov. Andrew Cuomo made an important point. The infrastructure of our cities is outdated and needs to be revamped so that it can withstand current weather patterns. Speaking of the need for levees in New York, Cuomo said: "It is something we're going to have to start thinking about ... The construction of this city did not anticipate these kinds of situations."

Regardless of whether Congress takes action on the issue of climate change, in the short term cities and suburbs must do more work to curtail the kind of damage wreaked by these storms and to mitigate the costs of recovery -- building underground power lines, increasing resources for emergency responders, building state-of-the-art water systems, and constructing effective barriers to block water from flooding.

The new immigrants are a powerful political and social force: As was the case in the turn of the twentieth century when Eastern and Southern Europeans came into this county, massive waves of immigration are remaking the social fabric of the nation. Latino-Americans, Asian-Americans and other new portions of the electorate who have been coming into the country since the reform of immigration laws in 1965 are coming to represent a bigger and bigger portion of the electorate.

Not only are their numbers growing as a voting bloc, but they are more organized and active than ever before, both on election day as well as in policy making.

Soon after the election, The New York Times reported that 600 members of United We Dream, a network of younger immigrants who don't have their papers, met for three days to plan how to lobby for a bill that would enable 11 million illegal immigrants to become legal. One of the leaders, Christina Jimenez, explained: "We have an unprecedented opportunity to engage our parents, our cousins, our abuelitos in this fight." They have both parties scrambling as Democrats are working to fulfill the promises that brought these voters to their side in November, while some Republicans are desperate to dampen the influence of hardline anti-immigration activists in their party.

We need to do something about guns. The year ended with a horrific shooting at an elementary school in Connecticut. When a 20-year-old went on a rampage apparently using guns that had been legally purchased by his mother, the world watched with horror. Several prominent conservative advocates of gun rights, including former congressman and television host Joseph Scarborough as well as Sen. Joe Manchin, made statements indicating that the time has come to impose stricter controls and regulations on the purchase of weapons. "I don't know anybody in the sporting or hunting arena that goes out with an assault file," Manchin said.

Over the next few weeks, there will certainly be a big debate about what caused this shooting. People from different perspectives will highlight different issues but making it more difficult for people to get their hands on certain kinds of weapons, while not a cure-all, can only diminish the chances of this happening again.

There are many more lessons but these six stand out. After the trauma of the past week, let's hope the new year starts off with better days.

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The opinions expressed in this commentary are solely those of Julian Zelizer.

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Christmas Eve shootings leave 7 hurt

Seven people were hurt, at least five seriously, in shootings on the South and West sides late Monday.

Four of the injured were hurt in a single shooting on the Far South Side, and all four were taken to local hospitals in serious-to-critical condition, according to the Chicago Fire Department.

The shooting happened shortly before 7:30 p.m. in the 9400 block of South Justine Street in the Brainerd neighborhood on the South Side, officials said.

A male opened fire, striking four males as they walked down the sidewalk, Chicago Police Department News Affairs Officer Amina Greer said, citing preliminary information.

A 15-year-old  and a 22-year-old  were taken to Advocate Christ Hospital in Oak Lawn, a 17-year old was taken to Mount Sinai Hospital and a 19-year-old  was taken to John H. Stroger, Jr. Hospital of Cook County, police said.

The 15-year-old was shot in the abdomen, and the 17-year-old was shot in the chest, police said. The other two men were shot multiple times.

Police said the condition of each was stabilized at the hospital.

About 11:50 p.m., a 21-year-old was shot in an attempted robbery in the Gresham neighborhood on the South Side, police said.

The victim was sitting in a parked vehicle in the 8200 block of South Marshfield Avenue when two males approached on foot and announced a robbery, Greer said, citing preliminary information.

Shortly after, one or both of the assailants shot into the vehicle, striking the man in the lower abdomen, police said.

The man was taken to Little Company of Mary Hospital and later transferred to Advocate Christ, where his condition was stabilized, police said.

About 9:05 p.m., a 19-year-old man was shot in the head in the 1200 block of West Washburne Avenue in the West Side's University Village neighborhood, police said. 

The man was taken to Stroger in serious condition, News Affairs Officer Veejay Zala said.

Earlier Monday evening, a 37-year-old man was shot in the leg and back in the South Side's Gresham neighborhood, police said.

The shooting happened in the 700 block of West 81st Street about 5:50 p.m., Zala said. The man was taken to an area hospital, where his condition was stabilized.

asege@tribune.com

Twitter: @AdamSege

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Egyptians fret over economy after rancorous vote on constitution

CAIRO (Reuters) - Egypt prepared to announce on Tuesday the result of a vote on a new constitution that Islamist President Mohamed Mursi hails as a step toward stability in a country beset by political and economic crisis.

But critics say that by ramming through the basic law, Mursi has angered his liberal, leftist and Christian opponents, and may have squandered any chance of building a broad consensus on tax rises needed to rein in a crushing budget deficit.

Unofficial tallies from Mursi's Muslim Brotherhood showed the charter was approved by a 64 percent majority. The electoral commission will announce the official result at 1700 GMT, with the final numbers widely expected to confirm earlier estimates.

Mursi believes the constitution will end a protracted period of turmoil that has haunted the most populous Arab nation since the fall of military-backed strongman Hosni Mubarak in 2011.

But ordinary people and some commentators worry that Mursi's approach in pushing through the contentious text will only galvanize his rivals to capitalize on any public backlash against austerity rather than help sell reforms to the nation.

Hossam El-Din Ali, a 35-year-old newspaper vendor in central Cairo, said he agreed the new constitution would help bring some political stability but like many others he feared the possible austerity measures lying ahead.

"People don't want higher prices. People are upset about this," he said. "There is recession, things are not moving. But I am wishing for the best, God willing."

If the "yes" vote is confirmed, a parliamentary election will follow in about two months, setting the stage for Islamists to renew their struggle with more liberal-minded opponents.

On the political front, tensions remain high. The opposition says the constitution, crafted mostly by Mursi's Islamist allies, fails to guarantee personal freedoms and the rights of women and minorities. The government denies this.

ECONOMIC WORRIES

Once a darling of emerging market investors, Egypt's economy has taken a hammering since Mubarak's fall.

The budget deficit surged to a crippling 11 percent of gross domestic product in the financial year that ended in June 2012 and is forecast to exceed 10 percent this year.

In a further worrying sign, Egypt has made it illegal for travelers to carry more than $10,000 in cash in or out of the country amid growing fears the government may not be able to get its fragile finances under control.

Reflecting investor concerns, Standard and Poor's cut Egypt's long-term credit rating this week and said another cut was possible if political turbulence worsened.

Adding fuel to people's worries, the central bank also said it was taking steps to safeguard bank deposits, in a statement which emerged after some Egyptians said they had taken out cash out of concern their accounts would be frozen by authorities.

Without broad support, Mursi will find it hard to implement reforms needed to secure a $4.8 billion loan from the International Monetary Fund.

Shortly before the referendum, Mursi enraged many by introducing hikes on the sales tax on goods and services that ranged from alcoholic beverages, cigarettes and mobile phone calls to automobile licenses and quarrying permits.

In an embarrassing policy U-turn, he withdrew them within hours under criticism from his opponents and the media.

Facing public anger, the Muslim Brotherhood's party, which propelled Mursi to office in an election earlier this year, may now also face a tougher fight in the parliamentary election.

(Writing by Maria Golovnina; Editing by Alistair Lyon)

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