All Flashcards
What is the Ozone Layer?
Region in Earth's stratosphere with high ozone (O₃) concentration; absorbs harmful UV radiation.
What are Ozone-Depleting Substances (ODS)?
Chemicals that break down ozone molecules, thinning the ozone layer.
What are Chlorofluorocarbons (CFCs)?
ODS used in refrigerants, aerosols, and foam products.
What are Hydrochlorofluorocarbons (HCFCs)?
Transitional ODS replacement for CFCs, still harmful to ozone.
What are Halons?
ODS used in fire extinguishers.
What are Hydrofluorocarbons (HFCs)?
Chemicals used as ODS alternatives; potent greenhouse gases.
How does reducing ODS consumption help?
Lowers the amount of ozone-depleting chemicals released into the atmosphere.
How does supporting ODS phase-out help?
Encourages policies that ban ODS and promotes ozone-friendly alternatives.
How does energy efficiency mitigate ozone depletion?
Reduces fossil fuel use, indirectly lowering ODS emissions.
What is the purpose of the Montreal Protocol?
International treaty to phase out the production and consumption of ozone-depleting substances (ODS).
What is the purpose of the Clean Air Act (USA)?
Federal law regulating ODS production and use, setting limits and phase-out requirements in the USA.
What is the purpose of the EU Regulation on ODS?
Sets limits on ODS within European Union member states, similar to the Clean Air Act in the USA.