The analysis of a sediment core from an oasis lake in Chad provides new insights into the history of precipitation in the Sahara. The study, led by the University of Cologne, shows that a prolonged ...
hat’s Donald Trump really worth? Everyone has an opinion, but Forbes has the answer: $6.5 billion, according to our most recent tally, updated in March. Trump added $1.4 billion over the past year, ...
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