Climate summit: the key issues

Some 150 heads of government and state on Monday kicked off a high-stakes negotiation to curb global warming and help poor countries cope with its impacts.

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Science and the rise of the co-authors

Physicists set a new record this year for number of co-authors: a 9-page report needed an extra 24 pages to list its 5,154 authors. That's a mighty long way from science's lone wolf origins!

date2 hours ago in Other
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