Environment

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An artist depicts NASA's Phoenix Mars Lander, which touched down on the Red Planet on May 26. The landing was one of NASA's favorite advances of the year. (NASA/Jet Propulsion Laboratory)

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Seal of the Federal Bureau of Investigation

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** FILE ** Solar panels are seen outside the offices of the Sacramento Municipal Utility District in Sacramento, Calif., Wednesday, Dec. 10, 2008. (Associated Press)

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An estimated 1,200 undocumented migrants daily cross the Limpopo River, South Africa's equivalent of the Rio Grande separating the U.S. and Mexico. Most are from Zimbabwe, where shortages of food and fuel and an unemployment rate of more than 80% have sparked a steady exodus to the more stable and more prosperous South Africa. (Getty Images/File)

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Michael Milken. ** FILE **

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With China providing much of the capital, Greek officials have big ambitions for Piraeus, the country's busiest port. (Associated Press/File)

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Chinese women cycle through pollution over Beijing's Tiananmen Square. Thick brown clouds of soot, particles and chemicals threatens global health and food supplies, says a U.N. report released Thursday. (Associated Press)

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Associated Press Mississippi's Houston Nutt

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Indie director Kevin Smith is shown here in this undated photo.

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** FILE ** About 30,000 participants run along the Potomac River near the Lincoln Memorial during the annual 26.2-long Marine Corps Marathon in 2008. (The Washington Times)

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Thorough-breds graze at the Eagle Valley Farm in Nicholas County near Carlisle, a part of Kentucky's famed Bluegrass region. Politicians in Washington have decreed that the area is in Appalachia, and the move qualifies the community to receive federal funding to bolster its economy. (AP photo)

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Vote harvesting occurs when third parties — like campaign workers — collect absentee ballots from voters and deliver them to election officials. (Associated Press, File)

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American University students face a changing but not hopeless job climate. COURTESY OF AMERICAN UNIVERSITY.

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Erosion control devices line the beach in Galveston, Texas. The geotubes had been covered by dunes before Hurricane Ike hit the island last month. Many parts of Galveston remain littered with debris and are not ready to host the crowds that they usually attract. (Associated Press)

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A television screen at the New York Stock Exchange shows the decision of the Federal Reserve to lower interest rates, Wednesday Oct. 8, 2008. The emergency cut led by the Federal Reserve will at least temporarily provide relief for investors who have been battered this week. (AP Photo/Richard Drew)

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Vicente Fox (Getty Images)

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AGENCE FRANCE-PRESSE/GETTY IMAGES China's state television recorded North Korea demolishing its Yongbyon nuclear cooling tower on June 27, 2008. North Korea Wednesday began banning U.N. nuclear inspectors from its main plutonium reprocessing plant. **FILE**

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The world's largest offshore windmill farm, Middelgrunden Windmill Farm, is in the Oeresund, near Copenhagen harbor. This farm's 20 windmills produce enough electricity to cover 3 percent of Copenhagen's power consumption. By 2020, Germany wants to obtain 20 percent of its energy from such renewable sources as wind. (Getty Images)

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A new study says Americans are endangered by flame retardant chemicals through dust and air in their cars, especially in hotter temperatures. Those chemicals are in seat foam to slow down fire if the car bursts into flames.