Twice a year, the setting sun aligns perfectly with the street grid of Manhattan. It simultaneously illuminates both the north and south sides of every cross street and makes New York City a mecca for photographers from all over the world.
A survey of global attitudes about the environment finds that Americans are unusually optimistic about an individual's ability to make a difference in dealing with environmental issues. Despite that, Americans are less likely than many people elsewhere in the world to change their behaviors. Those are some of the findings in the latest survey by the National Geographic project called the "Greendex."
How much of the recent hot weather can be attributed to global warming? Scientists will no doubt dig into the data and grapple with that question in the months to come. They have already taken a stab at that question regarding some of last year's extreme weather events, like the drought in Texas.
More than 800,000 gallons of crude oil gushed into wetlands and a creek in western Michigan in 2010 after a pipeline operated by the Canadian company Enbridge burst. Now, the National Transportation Safety Board says the company and the agency that regulates it are culpable.
There have been folktales for centuries about sounds supposedly coming from the sky when an aurora borealis is lighting up the night. Now, scientists in Finland say they've recorded the noises. What they don't know yet, is what causes them.
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