A return to previous Arctic conditions is unlikely, says a new NOAA report.

4,000 square foot living wall unveiled in Pennsylvania.

Scientists hope to turn coal plant CO2 emissions into clean air.

Region beginning to tap seismic volatility for electricity needs.

Nation's first energy storage bill passed by the California Legislature.

Floating dining room sits on 1,700 plastic bottles.

Sometimes you just have to laugh.

The New York Times reports.

Dot Earth asks why oil salvaged from the spill is going to BP instead of U.S. reserves.

On Earth Day 's 40th anniversary, John Kerry warns that climate change is the environment's biggest hurdle yet.