With a nod to Arbor Day, here's a rundown of some of the Earth's biggest tree species -- and what ails them.
It's your chance to probe the world's deepest waters. Continue reading →
Adding microbes to clouds may provide a way of manipulating the weather. Continue reading →
Plans call for a sustainable getaway in the desert. Continue reading →
Coal might be on the way out as a fuel, but it has another use. Continue reading →
No. 1: The Earth doesn't really look like the globe on your bookshelf.
North Korean and western researchers are working together to study a volcano that can send ash as far as Japan. Continue reading →
Plants reward fungi that provide more nutrients -- and starve those that don't.
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