Nature's Olive Heffernan awaits the final conclusion of the Copenhagen conference on climate change. Author Tom Friedman, Radiohead frontman Thom Yorke and others give us their take on the UN talks, and we finally get a glimpse of Barack Obama.
Deadline: Jun 29 2013
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The Seeker for this Challenge desires proposals for chemical methods that could rapidly degrade a dilute aqueous solution
Deadline: Jul 15 2013
Reward: $5,000 USD
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