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History
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Midgley c. 1930s–1940s
Midgley c. 1930s–1940s
Sign on an antique gasoline pump advertising the TEL anti-knock compound Ethyl, a gasoline additive
Sign on an antique gasoline pump advertising the TEL anti-knock compound Ethyl, a gasoline additive
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CFCs negatively affecting stratospheric ozone production
CFCs negatively affecting stratospheric ozone production
NASA projection of stratospheric ozone, in Dobson units, if chlorofluorocarbons had not been banned. Animated version.
NASA projection of stratospheric ozone, in Dobson units, if chlorofluorocarbons had not been banned. Animated version.