Where in the US and Canada is deforestation, air pollution, water pollution, and climate change happening?
San Francisco
Aereas near all population centers would be the most acute, as you get further North the polution is less and, the deforestation is greater. Look in these aereas for the place names for your answers.
Deforestation: Mountians and North.
Air polution: Pop. ctrs.
Water polution: Pop. ctrs. and agricultural aereas.
Climate change: the aereas that are already the most extreme; tundra, and deserts will show the effects most clearly.