Changes in snowmelt threaten farmers in western US

Farmers in parts of the western United States who rely on snowmelt to help irrigate their crops will be among the hardest hit in the world by climate change, a new study reveals.

Swamp microbe has pollution-munching power

Sewage treatment may be an unglamorous job, but bacteria are happy to do it. Sewage plants rely on bacteria to remove environmental toxins from waste so that the processed water can be safely discharged into oceans and rivers.

No glaciers, no water?

The world's largest rivers begin in glaciated mountain regions. However, climate change may cause many glaciers to disappear. Will water become scarce?

So much depends on a tree guard

In a big city, trees, like people, like their space. In a new study, researchers at Columbia University found that street trees protected by guards that stopped passersby from trampling the surrounding soil absorbed runoff ...

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