A new wind farm could become the largest in the U.S. and wean states off coal-fired power plants.
New Jersey aims to shrink its climate footprint by reducing wasted food that ends up in landfills.
Snowy conditions have stymied summer melt on Greenland this year, but the vast ice sheet is still losing ice.
Nearly 50 million acres of forest disappeared worldwide in 2015, mainly in North America and the tropics.
With weeks left in the melt season, Arctic sea ice area is already below the annual low of the 1980s.
South Miami, Fla., has become the first city outside of California to mandate solar panels on new homes.
California municipalities have filed first-of-their-kind lawsuits against fossil fuel giants over sea level rise.
Halfway through 2017, the year is the second hottest on record, even without an El Niño to help boost its temperature.