With the rise of concern about climate change, serious attention is being paid to schemes of geoengineering which involve global technical solutions which would ameliorate global warming. [1] Some solutions involve injection of material into the upper atmosphere to intercept or reflect incoming energy, an "orbital sunshade", another involves fertilizing phytoplankton with iron to increase carbon dioxide absorption. [2] Covering deserts with reflective material has also been suggested. [1]


  1. 1.0 1.1 "How to Cool a Planet (Maybe)", article by William J. Broad; Andrew C. Revkin contributed reporting, New York Times, June 27, 2006
  2. "Iron versus the Greenhouse: Oceanographers cautiously explore a global warming therapy", Richard Monastersky, Science News, Vol 148, page 220, September 30, 1995

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