Amazon feeds on dust from ancient African lake

摘要

Windblown dust from a dried-out African lake that was once the size of California is nourishing rainforests in the Amazon and algae in the Atlantic.rnPrevious modelling studies estimated that the Bodele depression in Chad, which formed when the largest lake in Africa dried out about 6000 years ago, is responsible for about 56 per cent of the dust from Africa reaching the Amazon, amounting to millions of tonnes peryear.