Massachusetts is considering classifying wood pellets and other tree products as renewable energy.
Wildfires are raging across British Columbia. They're the latest sign of climate change in the northern forest.
The Southwest's monsoons are becoming more intense, even as less rain falls on average.
Cities are already suffering from the impacts of extreme heat. It'll only get worse as the climate changes.
Heat and humidity will reach deadly extremes in South Asia if greenhouse gas emissions aren't curtailed.
Move over, temperature spiral. A new animation shows what global warming looks like in more than 100 countries.
A new wind farm could become the largest in the U.S. and wean states off coal-fired power plants.
Climate change is one reason the area burned by western wildfires is increasing.