Lake Ontario and St. Lawrence River water levels are expected to stay above average into the spring, following record levels last year that led to extreme flooding in Central Canada.

A new study estimates that climate impacts to public infrastructure in Alaska will total about $5 billion by century's end.

The storm dropped more than a foot of snow overnight in some places, making for a messy Thursday morning commute. And the nor’easter isn’t gone yet.

Northern freshwater lakes are turning brown as permafrost thaws and introduces more organic carbon into the water, according to a new study published in the journal Limnology and Oceanography Letters.

Researchers say they've come up with a way to better predict severe storms and protect infrastructure from damage caused by increasing temperatures in Western Canada.

Sweden and its neighbouring countries are not meeting targets to save the Baltic Sea, and one of the people involved in coordinating the work tells us why it is so hard to stop problems lilke fertilizer run-off.

A massive landslide that was first discovered last fall blocked a waterway west of the Mackenzie River. Scientists say it's something that could happen more often in the territory as the climate warms up.

From Massachusetts to Virginia, the East Coast was pounded by a storm that threatened to break records. Nearly two million people lost power.

The Svalbard Global Seed Vault celebrates its first decade in operation by accepting its millionth sample—and a grant for work to keep those samples safe despite melting permafrost.

Without ice to provide protection from storm waves, Port Heiden has lost the old town road.

For the community of Jean Lafitte, the question is less whether it will succumb to the sea than when — and how much the public should invest in artificially extending its life.

When there's no snow, there's no need for their winter whites.

The world’s permafrost holds vast stores of carbon. What happens when it thaws?

The area around Öræfajökull glacier continues to show increased activity as the largest earthquake detected in the area, M3,6 on the Richter scale, occurred there this morning.

New research shows that permafrost soils hold massive quantities of mercury — nearly twice as much as is held in all other soils in the world, plus the mercury in the oceans and the atmosphere —

Leaning utility poles in south Anchorage

A large retail and office building in downtown Whitehorse has shifted so much in just a few years that its elevator is now out of service.

This is not the first time this village has faced the threat of erosion and flooding, but relocating won’t be as easy as it was last time.

Just what exactly is permafrost? And what is happening now that it's warming up? To find out, we enter the Arctic Circle's secret world of ice and frozen history.

Earthquake in low-probability area in Alaska