Editing Chlorofluorocarbon (section)

===Phasing-out of HFCs and HCFCs===
Hydrofluorocarbons are included in the [[Kyoto Protocol]] and are regulated under the [[Kigali Amendment]] to the [[Montreal Protocol]]<ref name="A Novel Tactic in Climate Fight Gains Some Traction, NY Times">{{cite news |url=https://www.nytimes.com/2010/11/09/science/earth/09montreal.html?ref=earth |title=A Novel Tactic in Climate Fight Gains Some Traction |author=Broder, John M. |date=9 November 2010 |page=A9 |newspaper=The New York Times |access-date=5 February 2013 |url-status=live |archive-url=https://web.archive.org/web/20130520114421/http://www.nytimes.com/2010/11/09/science/earth/09montreal.html?ref=earth |archive-date=20 May 2013 }}</ref> due to their very high [[Global Warming Potential|Global Warming Potential (GWP)]] and the recognition of halocarbon contributions to climate change.<ref>{{cite journal | last1 = Velders | first1 = G. J. M. | last2 = Andersen | first2 = S. O. | last3 = Daniel | first3 = J. S. | last4 = Fahey | first4 = D. W. | last5 = McFarland | first5 = M. | title = The importance of the Montreal Protocol in protecting climate | journal = Proceedings of the National Academy of Sciences | volume = 104 | issue = 12 | pages = 4814–9 | year = 2007 | pmid = 17360370 | doi = 10.1073/pnas.0610328104 | bibcode = 2007PNAS..104.4814V | pmc=1817831| doi-access = free }}</ref>

On September 21, 2007, approximately 200 countries agreed to accelerate the elimination of hydrochlorofluorocarbons entirely by 2020 in a [[United Nations]]-sponsored [[Montreal]] summit. Developing nations were given until 2030. Many nations, such as the [[United States]] and [[People's Republic of China|China]], who had previously [[Global warming controversy|resisted such efforts]], agreed with the accelerated phase out schedule.<ref>[http://www.epa.gov/ozone/title6/phaseout/hcfc.html HCFC Phaseout Schedule]. {{webarchive|url=https://web.archive.org/web/20090716164753/http://www.epa.gov/ozone/title6/phaseout/hcfc.html |date=2009-07-16 }}. Epa.gov (28 June 2006). Retrieved on 2011-09-24.</ref> India successfully achieved the complete phase out of HCFC-141 b in 2020.<ref>{{Cite web |title=India achieves complete phase out of one the most potent ozone depleting chemical |url=https://pib.gov.in/PressReleaseIframePage.aspx?PRID=1600233 |access-date=2022-06-02 |website=pib.gov.in}}</ref>

It was reported that levels of HCFCs in the atmosphere had started to fall in 2021 due to their phase out under the Montreal Protocol.<ref>{{cite journal |last1=Western |first1=Luke M. |last2=Daniel |first2=John S. |last3=Vollmer |first3=Martin K. |last4=Clingan |first4=Scott |last5=Crotwell |first5=Molly |last6=Fraser |first6=Paul J. |last7=Ganesan |first7=Anita L. |last8=Hall |first8=Brad |last9=Harth |first9=Christina M. |last10=Krummel |first10=Paul B. |last11=Mühle |first11=Jens |last12=O’Doherty |first12=Simon |last13=Salameh |first13=Peter K. |last14=Stanley |first14=Kieran M. |last15=Reimann |first15=Stefan |last16=Vimont |first16=Isaac |last17=Young |first17=Dickon |last18=Rigby |first18=Matt |last19=Weiss |first19=Ray F. |last20=Prinn |first20=Ronald G. |last21=Montzka |first21=Stephen A. |title=A decrease in radiative forcing and equivalent effective chlorine from hydrochlorofluorocarbons |journal=Nature Climate Change |date=11 June 2024 |volume=14 |issue=8 |pages=805–807 |doi=10.1038/s41558-024-02038-7 |doi-access=free }}</ref>