David Keith (scientist)

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For the actor/director, see David Keith.

David W. Keith is a Canadian environmental scientist. He is Gordon McKay Professor of Applied Physics, School of Engineering and Applied Sciences (SEAS) and Professor of Public Policy, Harvard Kennedy School, Harvard University.[1] He is president of Carbon Engineering, based in Calgary, which works on ways to capture carbon dioxide directly from the atmosphere.[2] Keith has worked in carbon dioxide air capture.[3] In 2006, Keith was selected by Canadian Geographic as Environmental Scientist of the Year.[3][4]

In 2013, Keith released a book, A Case for Climate Engineering, detailing a controversial strategy for slowing climate change.[5] In it, Keith argued that spraying alumina particles in the upper atmosphere would create a reflective shield that would slow down the rate of climate change and buy humans time to curb emissions and instill more sustainable behavior.[2] He estimates the cost at $1 billion per year; he predicted that, without action, climate change would cost at least $1 trillion a year by 2050.[2]

Keith has been featured on the Discovery Channel,[6][non-primary source needed], did an interview on BBC News HARDTalk in November 2011,[7][8][9] has participated in TED talks in September 2007 ,[10][11][12] and appeared in a documentary on geoengineering currently under production.[13][non-primary source needed] He also promoted his geoengineering idea to slow climate change by spraying reflective particles into the upper atmosphere on The Colbert Report.[14]


  1. ^ "Contactpage David Keith, Professor of Public Policy, Harvard Kennedy School". Belfer Center. Retrieved 2012-05-12. 
  2. ^ a b c Grolle, Johann (20 November 2013). "Cheap But Imperfect: Can Geoengineering Slow Climate Change?". Der Spiegel. Retrieved 16 December 2013. 
  3. ^ a b Brian, Bergman. "Climate Contrarian" (PDF). Canadian Geographic (May/June 2006): 74–82. Retrieved June 10, 2009. 
  4. ^ NPR/TED Staff (9 August 2013). "Can Hacking The Stratosphere Solve Climate Change?". NPR. Retrieved 16 December 2013. 
  5. ^ Keith, David (2013). A Case for Climate Engineering. MIT Press. ISBN 0262019825. 
  6. ^ "David Keith: Fixing Carbon". Project Earth. Discovery Channel online. Retrieved 2011-11-01. 
  7. ^ "HARDtalk with David Keith". BBC News Channel. Retrieved 2012-05-17. 
  8. ^ "David Keith on the BBC HARDtalk Show". Global Oneness. Retrieved 2012-05-17. 
  9. ^ "David Keith: Solar Geoengineering Publications". Harvard University. Retrieved 2012-05-17. 
  10. ^ "David Keith´s unusual climate change ideas". TED Talks. September 2007. Retrieved 2012-05-17. 
  11. ^ "David Keith speaks on TED". The Climate Post. 2008-04-16. Retrieved 2012-05-17. 
  12. ^ "The great experiment with planet Earth (german)". Sauberer Himmel. 2012-05-09. Retrieved 2012-05-17. 
  13. ^ "Documentary Who owns the Weather". Retrieved 2012-05-12. 
  14. ^ Revkin, Andrew C. (13 December 2013). "Engineering the Climate – Colbert’s ‘All-Chocolate Dinner’". The New York Times. Retrieved 16 December 2013. 

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