Warming to make California downpours even wetter, study says

As damaging as it was for more than 32 trillion gallons of rain and snow to fall on California since Christmas, a worst-case global warming scenario could juice up similar future downpours by one-third by the middle of this ...

Trapped sediment in dams 'endangers' water supplies: UN

Thousands of the world's large dams are so clogged with sediment that they risk losing more than a quarter of their storage capacity by 2050, UN researchers said Wednesday, warning of the threat to water security.

California reels from 'endless' storm onslaught, 14 dead

Relentless storms were ravaging California again Tuesday, the latest bout of extreme weather that has left 14 people dead and prompted evacuation of a star-studded town home to Britain's Prince Harry and wife Meghan Markle.

How do tidal marshes store carbon?

Tidal marshes are wetlands that are covered with incoming tidal water twice a day. These marshes may be as small as narrow fringe along a tidal creek or miles across in estuaries with adjacent flat landscapes. There are nearly ...

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