Climate Change

The Paris climate agreement will enter into force November 4, after the EU ratified the accord to bring it past a key threshold.

New solar technology could help provide cheap power to many of the 600 million people in Africa who currently lack access to reliable electricity.

Researchers say one way to increase productivity is to address climate change, as hot weather makes it unbearable to work in some parts of the world.

New approaches to harvesting energy are taking shape. Three ingenious projects give you a taste of what the energy future might look like. The sky...

Cities around the world are getting granular with climate data, using a new tool called PREP to prepare for the local effects of climate change.

If you need answers on climate change, just ask the White House. In November, White House science adviser John Holdren asked the public to submit questions...

Once a declining industrial metropolis with steel mills spewing black smoke and soot into the sky, Pittsburgh has transformed itself into a vibrant green city.

U.S. and China, who produce 38 percent of the world's carbon dioxide emissions, have joined the Paris accord to keep the Earth's temperature from rising.

Bill Gates and 20 of the world's top entrepreneurs have a plan for investing in great ideas. They aim to revolutionize the clean energy sector.