Hundreds of millions of beavers used to populate the West but were hunted to near extinction. Turns out, beavers are critical to healthy water ecosystems, so now there are efforts to bring them back.
As the level of carbon dioxide in the air rises because of climate change, scientists are trying to pin down how plants are impacted. There's evidence that it's changing many important plants we eat.
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The Minnesota Public Utilities Commission worked through questions of Enbridge Energy and opponents of the Line 3 oil pipeline project on Tuesday, hinting that it might take them longer than expected to discuss the matter.
State regulators are holding hearings this week as they make final decisions on whether to let Enbridge Energy build its controversial oil pipeline replacement.
In his new book, Richard Rhodes lays out an accessible and surprisingly optimistic history of energy by exploring the lives of scientists and inventors -- and a few unlikely people, like the Bard of Avon.
Jerry Lynch told a crowd of agribusiness and food industry executives gathered in Minneapolis Thursday that healthy soil can help address everything from climate change to erosion -- and that savvy consumers are beginning to pay attention.
Global warming has so far seen a gradual rise in average temperatures. But that may change, with extreme variations. And poor countries could bear the brunt of it.