decade – n. any period of 10 years

greenhouse gas – n. gases in the atmosphere that trap heat

certain – adj. completely sure of something

regular – adj. happening repeatedly

devastating – adj. causing a lot of damage or destruction

acidic – adj. containing acid

emission – n. the act of releasing something

renewable – adj. any naturally occurring kind of energy, such sunlight or wind

impact – n. the effect that a person, event, or situation has on someone or something
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