Bluff/cliff side erosion along the Ningikfak River.

It’s a vicious cycle: As the weather warms, the Earth’s permafrost is melting, releasing greenhouse gases that are going to make the planet even hotter.

River Erosion

Because ice makes up a good portion of the underground foundation of northern Alaska, thawing has dropped the landscape as much as 3 feet in some places.

Spruce Aphid (Elatobium abietinum) Damage

Alaska’s tundra landscapes carpet a good portion of the state, from the North Slope to the elbow of the Alaska Peninsula. Researchers say it's slowly sinking in places -- as much as a fifth of an inch each year.

Early Rhubarb (Rheum rhabarbarum) Sprout

Pavlov Volcano provides spring show and showers

Coastal erosion near Cape Blossom

When 200 million metric tons of rock tumbled down a remote Southeast Alaska mountain in October, nobody was around to see it. But thanks to a beefed-up seismic network and a new system that can distinguish landslides from earthquakes, scientists knew it had happened.

River erosion damaging pedestrian walkway

There were lightning strike-caused fires at Paul's Creek and Coffee Creek north of King Salmon, AK.

Sockeye wildfire at mile post 77 of the George Parks Highway near Willow.

3/24/15 Early golfing - Palmer, Alaska, USa

Weekend storm eroded the face of the sea wall.

High rainfall this month is being blamed for a major landslide near Sitka. The US Forest Service reports that a 100-acre slide came down in the Starrigavan Valley, about ten miles from town. The slide, and water damage to an ATV trail in the valley and other hiking trails elsewhere in Sitka -- all add up to a tough month for the agency.