[Swirl]

-The DDT crisis
-The population bomb
-The threat of nuclear power
-Acid rain
-The Club of Rome resource depletion crisis
-The hole in the ozone layer
-Anthropogenic global warming

You forgot one.... remember Carl Sagan’s
Nuclear Winter

[Ken H]

The oil crisis in the 70s.

[marktwain]

-The DDT crisis
-The population bomb
-The threat of nuclear power
-Acid rain
-The Club of Rome resource depletion crisis
-The hole in the ozone layer
-Anthropogenic global warming

You forgot one.... remember Carl Sagan’s
Nuclear Winter

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Don’t forget Global Cooling and the next Ice Age in the 70’s