For the first time since records began, the Laptev Sea has not yet formed sea ice by the end of October. Scientists attribute the lack of ice to early summer warming and an extreme heatwave in Siberia, as well as warm Atlantic currents flowing into the Arctic.

The reindeer owners feel they had to choose. Pay expensive fines or move with the reindeer across the river even if the ice was too thin. On Saturday, a thousand reindeer went through the ice in Vuorašjávri, a mile east of Kautokeino municipality in Finnmark.

When glaciologist Jack Kohler returned to Austre Brøggerbreen in Svalbard, he was shocked. More than three meters of the ice at the glacier front had melted away. That's a record. And an ice tunnel had become a trench.

An exceptionally warm air current from the southeast has kept days and nights unseasonably mild in southern and central Finland since last week. Meanwhile the north of the country has been shivering with rain and temperatures in the single digits. The highest reading in decades was recorded in Kokemäki, southwest Finland.

The thermometer at the main visitor centre in Þingvellir National Park went all the way down to –9.6°C last night and meteorologists confirm that is one of the coldest temperatures ever recorded in a built-up area at this time of year—and could even have been a new record.

The glaciologists from Moscow came too late to see the MGU glacier in the North Ural.

The multinational company that operates the Red Dog Mine in Northwest Alaska says that thawing permafrost linked to global warming has forced it to spend nearly $20 million to manage its water storage and discharge.

It was out of habit that Rachel Kukull carried foraging tools while hiking through Chilkat State Park. The custom paid off when she spotted on the forest floor a flash of gold that made her scream. Chanterelles in November!

Blooms are often associated with low dissolved oxygen events and warm ocean water temperatures and weather changes – all of which we are, or have been, experiencing," said Kiemele. Farm owner Cermaq says it has deployed fish protection countermeasures that have already caused conditions to improve.

From Jan. 1 through Friday, Hawaii has set or tied 281 record high temperatures at official Weather Service stations located at four island airports ― in Honolulu, Hilo, Lihue and Kahului.

As much of the Lower 48 braces for frigid weather, Anchorage-area temperatures have run some 13 degrees above normal so far this month.

Aerial surveys this September and October show the bowheads aren’t where they usually are.

A blob menacing Hawaii is now visible from space. A massive heatwave in the Pacific Ocean is killing off coral. Satellites are capturing the destruction so that scientists can learn how to rebuild the reefs.

Low water on the Noatak River may be the reason behind changes in the water quality in community wells. The water quality began to change in the plant as measured (eventually) by the need for twice as much chlorine and Naclo polymer in order to get an acceptable residual of chlorine. The change indicates that the well recharge had been depleted and the that wells began operating on stored water in the aquifer. This water would have been older, likely anaerobic and higher in organics and in inorganics such as iron and manganese.

For the third year in a row, an enormous wildfire is destroying homes and properties in California, with smaller fires raging elsewhere in the state.

This stoop-pumpkin-rotting event is unusual compared with Dr. Johnson's long-term (lifetime) time series of annual October observations of stoop pumpkins in New York City.

Nils Thomas discovered "sinkhole" in the middle of Finnmarksvidda. Scientists have long warned against this, and now it happened.

Concern about permafrost thaw and possible impacts to underground water and wastewater lines.