People also ask
Are CFCs and HCFCs bad for the ozone?
CFCs and HCFCs are a no-no for the o-zone. The main ozone-depleting gases are chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). The Montreal Protocol, which came into force in 1989, lists 56 CFCs and 34 HCFCs, and production of almost all of them is now completely banned.
How much ozone has been lost in one month?
Measurement of the ozone by the Envisat satellite of the European Space Service showed a loss of 40 million tons of ozone in a period of a month, a figure which exceeds the former record of 39 tons measured in 2000.
How long does methane stay in the atmosphere?
A molecule of methane doesn’t stay in the atmosphere as long as a molecule of carbon dioxide鈥攁bout 12 years鈥攂ut it is at least 84 times more potent over two decades. It accounts for about 16 percent of all greenhouse gas emissions.