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Practice Listening: Fill in the Blanks (Type In)
ID: #34304
Short
Montreal
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As per the Montreal protocol HFCs (hydro fluorocarbons) are used in refrigeration and air-conditioning equipment in homes, buildings and industrial operations as a of ozone-depleting substances (CFCs-chlorofluorocarbon). About 55%, 24%, 11%, 5%, 4%, and 1% of total HFC is used in buildings and industrial operations, in air-conditioning in vehicles, in foam products, in aerosols, in fire systems and in solvents, respectively. Like the ozone-depleting most HFCs are potent greenhouse gases. Though they a (less than 5%) small fraction of the current total of all greenhouse gases, their global warming is higher than other greenhouse gases like carbon dioxide, methane, and nitrogen oxides.
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