Researchers reveal dust source on Tibetan Plateau

Dust deposited on a glacier's surface can reduce the albedo of the ice and increase absorption efficiency of solar radiation, which has a significant impact on glacier melting and global climate change.

Brazil vows more aid as Amazon waters dry up

Brazil's Vice-President Geraldo Alckmin said Wednesday that more help would be sent to an Amazon state where rivers are drying up in a severe drought, causing mass die-offs of fish and dolphins.

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