The people of the world continue to grapple with the question of how best to combat climate change
November 30, 2009 |
Is there a safe level of carbon dioxide in the atmosphere to prevent "dangerous anthropogenic interference" in the climate?
With greenhouse gas emissions continuing to rise, strong efforts will be required to reverse global warming
Was the climate really hotter during medieval times? David Biello reports
Evidence for human interference with Earth's climate continues to accumulate
Limiting climate change without damaging the world economy depends on stronger and smarter market signals to regulate carbon dioxide
* Supplement: Extended version
Deadline: Jun 29 2013
Reward: $7,000 USD
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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