What are the 5 enviromental problems you think americans contribute to most?

Question

This is an opinion question, but if you have websites or sources to back your opinion, it is that much better

Answer 1

Driving fuel inefficient cars

Wasting electricity, it's especially bad if their power comes from coal (cringe)

Not recycling and being generally wasteful

Having poorly insulated home so the heat can escape, thus burning more gas

Letting CFC's from old products leak into the atmosphere, killing our ozone layer