Editing Nuclear winter (section)

== Climate engineering ==
{{Main|Climate engineering}}
Despite the name "nuclear winter", nuclear events are not necessary to produce the modeled climatic effect.{{Sfn | Badash |2009 | pp = 242–244}}<ref name="climate.envsci.rutgers.edu" /> In an effort to find a quick and cheap solution to the global warming projection of at least 2 ˚C of surface warming as a result of the doubling in CO<sub>2</sub> levels within the atmosphere, through [[solar radiation management]] (a form of climate engineering) the underlying nuclear winter effect has been looked at as perhaps holding potential. Besides the more common suggestion to inject [[stratospheric sulfur injection|sulfur compounds into the stratosphere]] to approximate the effects of a volcanic winter, the injection of other chemical species such as the release of a particular type of soot particle to create minor "nuclear winter" conditions, has been proposed by Paul Crutzen and others.<ref>{{Cite journal |title=Albedo Enhancement by Stratospheric Sulfur Injections: A Contribution to Resolve a Policy Dilemma? |quote=release soot particles to create minor "nuclear winter" conditions |doi=10.1007/s10584-006-9101-y |volume=77 |year=2006 |journal=Climatic Change|pages=211–220|last1=Crutzen|first1=Paul J.|issue=3–4|doi-access=free|bibcode=2006ClCh...77..211C}}</ref><ref>{{Cite journal |title=Climate engineering: A critical review of approaches to modify the global energy balance |quote=Besides sulfur injections some other chemical species have been proposed for injection into the stratosphere. For instance the injection of soot particles as a consequence of a nuclear conflict has been studied in "nuclear winter" scenarios... (p. 87) |doi=10.1140/epjst/e2009-01149-8 |volume=176 |year=2009 |journal=The European Physical Journal Special Topics |pages=81–92 |last1=Feichter |first1=J. |last2=Leisner |first2=T. |issue=1 |bibcode=2009EPJST.176...81F |doi-access=free}}</ref> According to the threshold "nuclear winter" computer models,<ref name="2008physicstoday"/><ref name="news.nationalgeographic.com"/> if one to five teragrams of firestorm-generated soot<ref name=pnas.0710058105/> is injected into the low stratosphere, it is modeled, through the anti-greenhouse effect, to heat the stratosphere but cool the lower troposphere and produce 1.25&nbsp;°C cooling for two to three years; and after 10 years, average global temperatures would still be 0.5&nbsp;°C lower than before the soot injection.<ref name="news.nationalgeographic.com"/>