A food waste reduction hierarchy-feeding people first, then animals, then recycling, then composting-serves to show how productive use can be made of much of the excess food that is currently contributing to leachate and methane formation in landfills.

Eventually, we can get to a system where an electric company will be able to hold back some of the power so that maybe your air conditioner won't operate at its peak.

Poor communities, frequently communities of color but not exclusively, suffer disproportionately. If you look at where our industrialized facilities tend to be located, they're not in the upper middle class neighborhoods.

The sooner the US puts a cap on our dangerous carbon pollution, the sooner we can create a new generation of clean energy jobs here in America.

Choosing the most fuel-efficient vehicles within a class can save drivers at least $1,500 in fuel costs and avoid more than 15 tons of greenhouse gas pollution over the life of the vehicle, as well as help reduce dependence on foreign oil.

There could be oil coming up until August.

This is probably the biggest environmental disaster we have ever faced in this country. It is certainly the biggest oil spill and we are responding with the biggest environmental response.

Although the United States has made tremendous progress cleaning up its water by removing billions of pounds of pollutants and doubling the number of waterways safe for fishing and swimming, a majority of Americans live within 10 miles of a polluted lake, river, stream or coastal area.