Gas bubbles from waters filling crater hole on Yamal peninsula two months after volcanic-style explosion in thawing permafrost.

Community concerned about health and safety from old site.

The Koksilah River is in trouble, with low flows threatening fish populations.

Russian River flooded last week in Kodiak leaving some residents scrambling to address the damage.

Plenty of people have described Hurricane Harvey as a disaster of biblical proportions, and it seems the next plague is upon us. It’s not locusts. Thanks to untold quantities of filthy standing water, millions of mosquitos are starting to hatch. And yes, they do bite. They love to bite.

Study finds Zoloft, Celexa, Prozac and Serafem in multiple Great Lakes fish species — possibly changing their behavior and impacting the ecosystem

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

Scientists are unsure if warming temperatures are causing the bizarre invertebrates to spread.

Maps and graphics show the extent of the devastating flooding caused by Hurricane Harvey in Houston and Texas.

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

The storm is not expected to relent until Wednesday afternoon.

For the past several weeks, monsoon-triggered floods have devastated regions in Nepal, Bangladesh and India. This week, a new series of storms has brought everyday life in Mumbai to a near halt.

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

“Local rainfall amounts of 50 inches would exceed any previous Texas rainfall record. The breadth and intensity of this rainfall are beyond anything experienced before,” said a statement from the National Weather Service. “Catastrophic flooding is now underway and expected to continue for several days.”

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.

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.

Severe permafrost thaw and erosion along Koyukuk River banks.