WebApr 3, 2024 · Emissions of the five chemicals–CFC-13, CFC-112a, CFC-113a, CFC-114a and CFC-115—equaled 47 million metric tons of carbon dioxide emissions in 2024 alone, … WebMar 15, 2024 · CFC-11 is a chlorofluorocarbon that was commonly used to make refrigerants and insulating foams. When emitted to the atmosphere, the chemical sets off a chain …
Ozone layer
WebFeb 11, 2024 · Ozone molecules are made of three oxygen atoms. When CFC-11 is released into the atmosphere, radiation breaks it down into chlorine, which then eats into the ozone molecules, breaking them down ... WebFeb 10, 2024 · If the sharp decline in unexpected global emissions and unreported production is sustained, any associated future ozone depletion is likely to be limited, despite an increase in the CFC-11 bank... dudley motlow attorney
CFCs and Ozone Depletion Chemistry Tutorial - AUS-e-TUTE
WebMar 16, 2024 · Man-made chlorofluorocarbons (CFCs) are the primary cause of the Antarctic ozone hole ( 1 ). The atmospheric lifetimes of these chemicals range from about 50 to 500 yr. The Montreal Protocol agreed to a complete phase out of worldwide CFC production and consumption by 2010. WebApr 3, 2024 · Disused refrigerant tanks containing CFCs in a warehouse in Illinois in 2024. Their power to dissolve the ozone layer shielding Earth from the Sun prompted a … WebAug 27, 2009 · The CFCs and N 2 O are very stable in the troposphere, where they are emitted, and are transported to the stratosphere where they release active chemicals that destroy stratospheric ozone through chlorine- or nitrogen oxide–catalyzed processes. They both have substantial anthropogenic sources. dudley myhr login