Military steps up effort to go green.

NYC looks to the renewable energy potential of sewage treatment.

Canadian project converts waste to clean energy.

Dirty booms move from the Gulf to your car's interior.

Trash-to-energy projects gain support on the West Coast.

Move follows plastic bag prohibitions by several Californian cities.

Progressive regulations will eliminate most fast food packaging from the landfill.

Factories, power plants and landfills face crackdown with EPA's new ozone proposal.