US states reach agreement to save dwindling Colorado River

Western US states said Monday they have reached an agreement to cut the amount of water they take from the dwindling Colorado River, which is threatened by a quarter of a century of drought and worsening climate conditions.

'Rivers in the sky' shape African climate

East Africa is much drier than other tropical land regions, including the Amazon and Congo rainforests. The geography of East Africa was always thought to make the region dry and susceptible to drought, but the precise mechanism ...

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