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Apr 29, 2016 06:30 AM ET
With a nod to Arbor Day, here's a rundown of some of the Earth's biggest tree species -- and what ails them.
Apr 27, 2016 09:25 AM ET
It's your chance to probe the world's deepest waters. Continue reading →
Apr 25, 2016 02:31 PM ET
Adding microbes to clouds may provide a way of manipulating the weather. Continue reading →
Apr 25, 2016 09:38 AM ET
Plans call for a sustainable getaway in the desert. Continue reading →
Apr 22, 2016 07:00 AM ET
Coal might be on the way out as a fuel, but it has another use. Continue reading →
Apr 21, 2016 12:15 PM ET
No. 1: The Earth doesn't really look like the globe on your bookshelf.
Apr 18, 2016 03:38 PM ET
North Korean and western researchers are working together to study a volcano that can send ash as far as Japan. Continue reading →
Apr 14, 2016 04:13 PM ET
Plants reward fungi that provide more nutrients -- and starve those that don't.
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