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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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Live Chat: Can Geoengineering Save the World?
30 May 2012 8:16 am
See below for the chat box. Join us each Thursday at 3 p.m. EDT for a live conversation with leading scientists and expert reporters.
For a decade, Canadian physicist David Keith has led the effort to explore the controversial idea of geoengineering, the deliberate tinkering of the planet to curb the effects of climate change. Ideas have ranged from sucking carbon dioxide out of the atmosphere to seeding Earth’s stratosphere with sunlight-blocking particles. How practical are such approaches? What are the geopolitical implications? And what are the risks of these approaches compared to staying on our present course?
Join us for a live chat at 3 p.m. EDT on Thursday, 31 May, on this page. You can leave your questions in the comment box below before the chat starts. The full text of the chat will be archived on this page
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Applied physicist David Keith holds joint appointments in Harvard's School of Engineering and Applied Sciences, as well as the Kennedy School for public policy. He is CEO of Climate Engineering, a company in Calgary building machines to remove CO2 from the air.
Contributing correspondent Eli Kintisch has covered science policy for seven years for Science magazine. In 2010 he published Hack the Planet: Science's Best Hope -- or Worst Nightmare -- for Averting Climate Catastrophe. He is the curator of the To Extremes climate-themed art exhibition.