Geoengineering is the use of technologies to alter the climate. An example of this injecting aerosols into the stratosphere in order to offset the effects of greenhouse gases. Major volcanic eruptions such as Mount Pinatubo produce the same proposed effect.
- Wigley, T.M.L.. "A Combined Mitigation/Geoengineering Approach to Climate Stabilization ." Science Vol. 31420 October 2006 452-454. 21 Oct 2008 <http://www.sciencemag.org/cgi/content/full/314/5798/452>