A new study shows air pollution from Canada's oil sands could be 4 times higher than previously reported.
As rich countries have foundered, India and China have emerged as global leaders in tackling warming.
Over Trump's first 100 days, we're going to show what science tells us about our warming world.
After Ice is a new app that uses augmented reality to make the impacts of sea level rise clearer.
The world's marquee carbon dioxide observatory just recorded a major climate milestone.
Removing carbon dioxide from the air may be the most effective way to meet the globe's ambitious climate goals.
Since the first Earth Day in 1970, the average annual temperature in every state has climbed.
Communities across the West will have to adapt to living with the ever-increasing threat of wildfires.
The global warming-induced retreat of a Canadian glacier caused one river to siphon off another's flow.
Climate financing was a major bone of contention during negotiations in Paris in 2015.
Mass bleaching events in 2016 and 2017 have affected two-thirds of the Great Barrier Reef.
Climate change is a growing threat to impact the global supply of chocolate.
A new poster series takes iconic landscapes and imagines what they’ll look like in 2050 with climate change.
Heat waves have set in early in northern India. They are expected to become more common with warming.
Major oil companies, feeling pressure from low oil prices and global climate policy, are fleeing Canada's oil sands.
The average date of the last spring freeze is shifting earlier in the year, extending the pollen and growing season.
U.S. energy-related carbon pollution fell in 2016, part of a decade-long trend as utilities use less coal.
Climate change has fueled bleaching at the Great Barrier Reef for an unprecedented two years in a row.
Coal use in the U.S. fell 9 percent in 2016, even as the Trump administration seeks a coal industry revival.
Dozens of GOP-sponsored bills have been introduced in Congress that seek to hamstring federal climate action.