Technologies to modify the Earth’s climate are at least conceivable and, in the absence of a comprehensive national and international climate change policy, may soon emerge as practical alternatives, a new survey of the subject from the Congressional Research Service suggests.
“The term ‘geoengineering’ describes this array of technologies that aim, through large-scale and deliberate modifications of the Earth’s energy balance, to reduce temperatures and counteract anthropogenic climate change,” the CRS report said. However, “Most of these technologies are at the conceptual and research stages, and their effectiveness at reducing global temperatures has yet to be proven.”
“Moreover, very few studies have been published that document the cost, environmental effects, sociopolitical impacts, and legal implications of geoengineering. If geoengineering technologies were to be deployed, they are expected to have the potential to cause significant transboundary effects.” See “Geoengineering: Governance and Technology Policy” (pdf), August 16, 2010.
The Congressional Research Service — acting at congressional direction — does not permit direct public access to its publications. Some other recent CRS reports obtained by Secrecy News include the following (all pdf).
“The European Union’s Response to the 2007-2009 Financial Crisis,” August 13, 2010.
“Turkey: Politics of Identity and Power,” August 13, 2010.