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Jun 9, 2014 12:55 PM ET // Ian O'Neill
Through the analysis of a previously unexplained ratio of isotopes, scientists have recovered a geological time capsule of sorts that they believe represents a very different Earth that existed some 4.5 billion years ago. Continue reading →
Sep 27, 2012 07:32 PM ET // Alyssa Danigelis
A ski resort's plan to use sewage for snow production prompts gagging and protests.
Jan 6, 2011 10:39 PM ET // Christina Reed
Chlorine has a dark side, but giving it up is proving difficult.
Sep 14, 2010 07:25 PM ET // Michael Reilly
Researchers are building vegetable gardens that could one day be used to support colonies on the moon.
Apr 14, 2010 03:22 PM ET // Kieran Mulvaney
Can the the United States' Clean Water Act be used to combat carbon dioxide emissions?
Oct 17, 2011 03:03 PM ET // Tim Wall
Plants and animals from polar bears to marine iguanas are turning into runts.
Sep 8, 2010 11:15 AM ET // Michael Reilly
A new expedition into Antarctica will investigate how much methane is bubbling from the ocean floor, and whether it will have a significant impact on global climate.
Apr 5, 2011 09:00 AM ET // Tim Wall
Grasses are taking advantage of the warming Antarctic climate. Are weeds next?
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