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5 December 2013 11:26 am ,
Vol. 342 ,
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
Since arriving on the island of Guam in the 1940s, the brown tree snake ( Boiga irregularis ) has extirpated native...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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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?
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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.