During September, the average contiguous U.S. temperature was 66.3°F, 1.4°F above average.

A new report identifies climate change as one of the challenges facing transportation in Alaska's most famous national park.

Cloudberries observed in new area around Seldovia.

For centuries, marine species have moved around either by hitching ride on the hulls of ships or as stowaways in ballast water. In many instances, species have been deliberately introduced for aquaculture or other commercial purposes.

Harvey has been devastating beyond Houston. Here's the latest.

The Kivalliq Inuit Association says a road connecting the Whale Tail pit project to the Meadowbank mine, near Baker Lake, will bisect a caribou migratory route and will have more frequent traffic than any other mine in Nunavut.

Looking around the deserted plaza in front of the Sandman Centre arena in Kamloops on Monday, it’s hard to believe that last month it was crammed with thousands of people who were looking for help after being forced from their homes by wildfires.

Several factors have conspired to make Hurricane Harvey so destructive in Texas, and warming temperatures are likely part of the problem.

Wildfires are sweeping B.C.

Study calculates energy Harvey took from the ocean, shows human role.

The remnants of Harvey re-intensified into a hurricane on Thursday, and it may become a major hurricane by Friday.

The loss of frozen ground in Arctic regions is a striking result of climate change. And it is also a cause of more warming to come.

Hundreds of firefighters and dozens of aircraft are working to contain the largest wildfire ever recorded in British Columbia's history, and it could take weeks to get it under control.

The wildfire appears historic in both its size and its duration, but no one can say for sure — because Greenland doesn't have longstanding records of fires.

Hundreds of Pacific walruses came ashore to a barrier island on Alaska's northwest coast, the earliest appearance of the animals in a phenomenon tied to climate warming and diminished Arctic Ocean sea ice.

Lutselk'e, N.W.T. is one of several communities in the Northwest Territories that has been blanketed by smoke over the past few days thanks to strong south winds blowing smoke up north from fires burning south of Great Slave Lake.

Human adaptation to climate change there is not going well

From greenhouse gases to tropical cyclones, and from the South Pole to the Sahara, the 37th issue of the annual State of the Climate report catalogs the climate in 2016.