Editing Chlorofluorocarbon (section)

===Phasing-out of CFCs===<!-- don't change name, it is used as direct jump-address-->
Use of certain chloroalkanes as solvents for large scale application, such as dry cleaning, have been phased out, for example, by the [[Integrated Pollution Prevention and Control|IPPC]] directive on [[greenhouse gas]]es in 1994 and by the [[volatile organic compounds]] (VOC) directive of the [[European Union|EU]] in 1997. Permitted chlorofluoroalkane uses are medicinal only.

Bromofluoroalkanes have been largely phased out and the possession of equipment for their use is prohibited in some countries like the Netherlands and Belgium, from 1 January 2004, based on the [[Montreal Protocol]] and guidelines of the European Union.

Production of new stocks ceased in most (probably all) countries in 1994.<ref>{{cite web | url=https://www.epa.gov/ods-phaseout/phaseout-class-i-ozone-depleting-substances#:~:text=The%20ban%20on%20production%20and,several%20exemptions%20from%20the%20phaseout | title=Phaseout of Class I Ozone-Depleting Substances | date=22 July 2015 }}</ref><ref>{{Cite web |date=2021-04-01 |title=Ozone depleting substances |url=https://environment.govt.nz/acts-and-regulations/acts/ozone-layer-protection-act-1996/ozone-depleting-substances/ |access-date=2023-12-12 |website=Ministry for the Environment |language=en-GB}}</ref><ref>{{cite web|url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1144969/20230320_JSP_418_Leaflet_7.pdf|title=Management of Environmental Protection in Defence|website=service.gov.uk|access-date=17 May 2024}}</ref> However many countries still require aircraft to be fitted with halon fire suppression systems because no safe and completely satisfactory alternative has been discovered for this application. There are also a few other, highly specialized uses. These programs recycle halon through "halon banks" coordinated by the Halon Recycling Corporation<ref>[http://www.halon.org/ Welcome to the Halon Corporation]. {{webarchive|url=https://web.archive.org/web/20090919000942/http://www.halon.org/ |date=2009-09-19 }}. Halon.org. Retrieved on 24 September 2011.</ref> to ensure that discharge to the atmosphere occurs only in a genuine emergency and to conserve remaining stocks.

The interim replacements for CFCs are hydrochlorofluorocarbons (HCFCs), which deplete stratospheric ozone, but to a much lesser extent than CFCs.<ref name=prin>{{cite journal |last1=Prinn |first1=R. G. |last2=Weiss |first2=R. F. |last3=Fraser |first3=P. J. |last4=Simmonds |first4=P. G. |last5=Cunnold |first5=D. M. |last6=Alyea |first6=F. N. |last7=O'Doherty |first7=S. |last8=Salameh |first8=P. |last9=Miller |first9=B. R. |last10=Huang |first10=J. |last11=Wang |first11=R. H. J. |last12=Hartley |first12=D. E. |last13=Harth |first13=C. |last14=Steele |first14=L. P. |last15=Sturrock |first15=G. |last16=Midgley |first16=P. M. |last17=McCulloch |first17=A. |title=A history of chemically and radiatively important gases in air deduced from ALE/GAGE/AGAGE |journal=Journal of Geophysical Research: Atmospheres |date=27 July 2000 |volume=105 |issue=D14 |pages=17751–17792 |doi=10.1029/2000JD900141 |bibcode=2000JGR...10517751P |doi-access=free }}</ref> Ultimately, [[Haloalkanes#Hydro fluoro compounds (HFC)|hydrofluorocarbons (HFCs)]] will replace HCFCs. Unlike CFCs and HCFCs, HFCs have an ozone depletion potential (ODP) of 0.<ref>[http://www.epa.gov/ozone/defns.html "Ozone Layer Depletion", ''U.S. Environmental Protection Agency'']. {{webarchive|url=https://web.archive.org/web/20080919230641/http://www.epa.gov/ozone/defns.html |date=2008-09-19 }} accessed 25 June 2008</ref> DuPont began producing hydrofluorocarbons as alternatives to Freon in the 1980s. These included Suva refrigerants and Dymel propellants.<ref name="1930: Freon, DuPont Heritage">[http://www2.dupont.com/Heritage/en_US/1930_dupont/1930_freon/1930_freon_indepth.html Freon : 1930. In Depth]. {{webarchive|url=https://web.archive.org/web/20110319040544/http://www2.dupont.com/Heritage/en_US/1930_dupont/1930_freon/1930_freon_indepth.html |date=2011-03-19 }}. dupont.com (30 January 2009). Retrieved on 2011-09-24.</ref> Natural refrigerants are climate friendly solutions that are enjoying increasing support from large companies and governments interested in reducing global warming emissions from refrigeration and [[air conditioning]].