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Chlorofluorocarbons
Organic compounds made up of atoms of carbon, chlorine, and fluorine. An example is CFC-12 (CCl2F2, used as a refrigerant in refrigerators and air conditioners and as a foam blowing agent. Gaseous CFCs can deplete the ozone layer when they slowly rise into the stratosphere, are broken down by strong ultraviolet radiation, release chlorine atoms, and then react with ozone molecules. See ozone depleting substance, fluorocarbons. (source: EPA) Background from Wikipedia The haloalkane (also known as halogenoalkanes) are a group of chemical compounds, consisting of alkanes, such as methane or ethane, with one or more halogens linked, such as chlorine or fluorine, making them a type of organic halide. They are known under many chemical and commercial names. As fire extinguishants, propellants and solvents they have or had wide use. Some haloalkanes have negative effects on the environment such as ozone depletion. The most widely known family within this group are the chlorofluorocarbons (CFCs). Economic Times,Several companies here produce hydro chlorofluorocarbons (HCFCs), enabling them to generate carbon emission rights (CERs), much in demand from corporates Al Gore tried to tell us what would happen to fall foliage - 22 Oct 2007 New Haven Register (subscription),Says conservative voice Brent Bozell III, "Since Al Gore's eco-doom crusade is less about peace and more about the perils of chlorofluorocarbons, Letter: Aerosol products not a factor in global warming - Oct 21, 2007 TCPalm,In the late 1970s, US producers of aerosol products and packaging voluntarily phased out CFCs (chlorofluorocarbons) as the propellant in consumer aerosol No time to talk about the weather - Sep 28, 2007 Journal Times,For every company which acted on its own — as SC Johnson did in the 1970s — to eliminate chlorofluorocarbons from its products, there were scores which Cuba Promotes Projects to Protect the Ozone Layer - Sep 26, 2007 Mathaba.Net,...announced that the plant will now produce these aerosols without damaging the ozone layer as it will not use any kind of chlorofluorocarbons (CFCs), Nations reach deal on cutting ozone threats - Sep 22, 2007 Radio New Zealand,...of the International Union of Air Pollution Prevention Associations, says New Zealand has effectively curtailed its use of chlorofluorocarbons (CFCs). From blue collar to green chemistry - Oct 8, 2007 ZDNetThe people who invented chlorofluorocarbons were heroes. Every week there would be a disaster: an ammonia explosion from a refrigerator plant--people were Air Products Shanfeng Becomes Wholly-Owned Subsidiary of Air ... - Oct 18, 2007 CNNMoney.comThe ban of chlorofluorocarbons (CFC11) as blowing agents in buildings by the China Ministry of Construction in July this year has further boosted the use of Al Gore's Nobel Propaganda Prize - Oct 18, 2007 Yahoo! NewsSince Al Gore's eco-doom crusade is less about peace and more about the perils of chlorofluorocarbons, was his Nobel controversial? Of course not. Lavoisier Medals Awarded For Replacement Technology for CFCs and ... - Oct 3, 2007 CNNMoney.comNoelke led the team that developed HFC 134-A, a replacement to chlorofluorocarbons (CFCs), a refrigerant recognized in the early 1970s to be accumulating in Braunholtz: Gore’s vindicated now - Oct 19, 2007 Vail Daily News,Really, it’sa back-handed compliment to Al Gore’s knowledge and foresight as he helped enact a ban on CFCs (Chlorofluorocarbons), which were destroying the Commentary: The Greater Caribbean This Week: Global warming today - Oct 18, 2007 Caribbean Net News,This warming is due to the strong increase in the atmosphere of several greenhouse gases, including carbon dioxide, chlorofluorocarbons, methane and Sears, EPA Help with Appliance Recycling - Oct 18, 2007 Associated Content,...of appliances that contain chlorofluorocarbons (CFCs) and hydrofluorocarbons (HFCs) which destroy ozone and trap greenhouse gases in our atmosphere. Sears Joins EPA to Help Protect the Planet - One Old Ice Box at a Time - Oct 18, 2007 NewsBlaze,Each year, Americans dispose of roughly 10 million refrigerators and freezers that contain ozone-destroying and heat-trapping chlorofluorocarbons (CFCs) or Gore’s Nobel efforts promote peace from the earth up - Oct 18, 2007 Columbia Missourian,The funny thing is that the hero of the Republican Party, Ronald Reagan, stood tall, and worked with 160 nations to phase out chlorofluorocarbons (CFCs) and Life on the Cyberplanet - Oct 18, 2007 New California Media,It happened because a few scientists discovered in the mid-1970s that sunlight turns the chemicals known as chlorofluorocarbons into chlorine in the upper New inhalers ozone-friendly - Oct 17, 2007 MU The Parthenon (subscription),Albuterol contains chlorofluorocarbons, which are known to cause depletion in the ozone layer, and will be completely phased out by December 2008, Edward O. Wilson recruits builders for a human ark - Oct 17, 2007 City Pulse,For example, the world ban on chlorofluorocarbons imposed in the late 1980s is slowly healing the once-catastrophic hole in Earth’s ozone layer. Scientist enabled catalytic converter - Oct 11, 2007 Toronto Star,Jia says research into surface reactions on these floating crystals led to an understanding of the complex role CFCs (chlorofluorocarbons) were playing in Oct. 11, 1995: 'We're Trashing the Ozone Layer' - Oct 10, 2007 Wired News...for chemistry for their research showing that the release of nitrogen oxide through manmade chlorofluorocarbons damages the Earth's natural ozone layer. A Climate Meeting Packed With Nobel Winners - Oct 10, 2007 New York Times,...a Mexican-American chemist who won the Nobel Prize in 1995 for being the first to posit that chlorofluorocarbons and similar chemicals could poke a hole Australia takes on energy-guzzling TVs - Oct 9, 2007 Science Daily (press release)As such, it contributes a significant share of ozone-depleting chlorofluorocarbons (CFCs) into the environment. Now, an internationally . [WT논�]Ozone:The hole truth - Oct 8, 2007 세계�보,The treaty came about over legitimate but overstated concerns that chlorofluorocarbons (CFCs, a then-widely used class of refrigerants) and other compounds International agreement to accelerate phase-out of greenhouse gas ... - Sep 24, 2007 Media Newswire (press release),...delivered a complete international phase-out of chlorofluorocarbons (CFCs) and major reductions in other substances that deplete the ozone layer. Can the Huge Claimed Consensus on CO2 and Global Warming Possibly ... - Oct 16, 2007 CO2 Science Magazine,A case in point concerns the claimed destruction of stratospheric ozone by long-lived chloride compounds derived from mass-produced chlorofluorocarbons, The 11th Hour - Oct 7, 2007 Sydney Morning Herald,...you that the oceans are polluted, the fish are dying, the air is rotten, asthma is raging and chlorofluorocarbons are colonising the atmosphere. Presidential Citation winners announced - Oct 15, 2007 University of Delaware,Shiflett and his research team at DuPont developed new refrigerant mixtures to replace the CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons) Effect of Climate Change on Recovery of Ozone Hole Remains Unclear - Oct 15, 2007 US Department of State,Some of the most destructive chlorine source gases are human-made chlorofluorocarbons (CFCs). CFCs were developed in the 1930s and were used in industrial, Ozone breach at a five-year low - Oct 4, 2007 The Australian,...layer is caused by the presence of gases such as chlorine and bromine, which originate in man-made products such as chlorofluorocarbons (CFCs). Piantedosi Baking Company Pays Fine for Clean Air Violations - Oct 15, 2007 Associated Content,These are important documents because there are certain types of refrigerants, in particular chlorofluorocarbons (CFCs), that contain substances that have a Teeny tiny ozone hole for 2007 - Oct 4, 2007 Register,...clouds that contain chlorine (much of it originating from man-made pollutants like chlorofluorocarbons) can form in the polar stratosphere. US: Methyl bromide gets reprieve - Oct 15, 2007 FreshPlaza,...ozone in the stratosphere — chlorofluorocarbons, halons, carbon tetrachloride and methyl chloroform — are to be phased out internationally by 2000. Ozone hole shrinks 30 per cent - Oct 3, 2007 Stuff.co.nz,Ozone destructing gases in the atmosphere such as chlorine and bromine, originating from man-made products like chlorofluorocarbons (CFCs)remain in the air 2007 Ozone Hole 'Smaller Than Usual' - Oct 3, 2007 Science Daily (press release)...originating from man-made products like chlorofluorocarbons (CFCs), which have still not vanished from the air but are on the decline as they are banned Is nuclear power the energy of the future? - Oct 15, 2007 BlueRidgeNow.com,...emissions that the Peducah, Ky., nuclear power plant is considered the largest emitter of ozone-destroying chlorofluorocarbons (CFCs) in the country. T&T gets award for fight against global warming - Oct 1, 2007 Trinidad & Tobago Express,..."HCFCs were originally considered transition chemicals used as substitutes for chlorofluorocarbons (CFCs) because they deplete the ozone layer less," she Israeli honored for helping save ozone - Oct 1, 2007 Ha'aretz,...banned chemicals, since while they also deplete the ozone, they do so much less than the chemicals they replaced, such as chlorofluorocarbons (CFCs). CRAIG ISHERWOOD: Global debate warming up - Oct 14, 2007 Geelong Advertiser,...for predictions of sizeable global warming due to observed increases in minor greenhouse gases such as carbon dioxide, methane, and chlorofluorocarbons. Venturing into space and finding Earth - Sep 30, 2007 Globe and Mail,The damage to the ozone layer, which protects the Earth from harmful solar radiation, was blamed on the widespread use of chlorofluorocarbons (CFCs). The Pentagon's Eco-Leaders - Sep 30, 2007 Washington Post,But those cooling units have traditionally relied on chlorofluorocarbons (CFCs) and the fire-extinguishing systems on gases known as halons -- substances 'Here's Johnny!' is lost on freshmen - Sep 29, 2007 Houston Chronicle,March 2: Twelve European Community nations agree to ban the production of all chlorofluorocarbons (CFCs) by the end of the century. We can combat climate change - Sep 27, 2007 International Herald Tribune,The next, we hear that world governments met in Montreal to accelerate a deadline for phasing out the ozone-depleting chemicals known as chlorofluorocarbons Trust America on climate change - Sep 26, 2007 Financial Times,A similar pattern of paralysis characterised the Montreal protocol process for eliminating ozone-depleting chlorofluorocarbons in the mid-1980s. Chemists poke holes in ozone theory - Sep 26, 2007 Nature.com (subscription),Long-lived chloride compounds from anthropogenic emissions of chlorofluorocarbons (CFCs) are the main cause of worrying seasonal ozone losses in both CFCs Eliminated in Epinephrine Inhalers for Asthma - Sep 26, 2007 Environment News Service...proposed a change to its regulation on the use of the ozone depleting chemicals chlorofluorocarbons, CFCs, in metered dose inhalers for epinephrine. Nigeria: UN, Govts Agree On Climate Change - Sep 26, 2007 AllAfrica.com,...equipment and foams, following an earlier decision to phase-out older and more ozone-damaging chemicals known as CFCs or chlorofluorocarbons. Deal Reached to Phase Out Greenhouse Gas - Sep 23, 2007 The Associated PressHCFCs emerged in the 1990s to phase out the older and more ozone-damaging chlorofluorocarbons (CFCs) used in air conditioners, refrigerators and hair sprays Bush again puts US at edge of global warming debate - Sep 23, 2007 International Herald Tribune,That protocol was amended Friday, with American support, to speed up the phasing out of hydro chlorofluorocarbons used in home appliances, Countries sign on for accelerated plan to get rid of ozone ... - Sep 23, 2007 The Canadian PressA UN document says the Montreal Protocol led to worldwide reductions in the production of chlorofluorocarbons - or CFCs. In the 1990s, HCFCs became the 'Historic' deal reached on cutting ozone threats - Sep 22, 2007 AFP...which originally became popular with manufacturers as a substitute for more dangerous chlorofluorocarbons (CFCs) formally popular as industrial coolants News index | RSS | News Feed Advertisements: Organic Apparel from Patagonia | Insect-repelling clothing |
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