CFC-11, also known as trichlorofluoromethane, is a chlorofluorocarbon (CFC) that was commonly used as a refrigerant, solvent, and aerosol propellant. It is one of the most potent greenhouse gases, with a global warming potential that is about 4,000 times greater than carbon dioxide.
The use of CFC-11 has been banned under the Montreal Protocol, an international treaty that aims to phase out the production and use of ozone-depleting substances. However, in recent years, there have been reports of illegal production and use of CFC-11 in several countries, despite the ban.
The release of CFC-11 into the atmosphere can have serious consequences for the Earth’s ozone layer, which protects the planet from harmful UV radiation. It can also contribute to climate change by trapping heat in the atmosphere. It is important to continue to monitor and enforce the ban on CFC-11 to protect the environment and our planet.