During the last ice age's maximum, at a time when Scandinavia was covered by a gigantic ice sheet, ice-free conditions prevailed in the Polar Ural Mountains. John-Inge Svendsen writes about a unique climate archive from Arctic Russia.

Did you know that the El Niño Southern Oscillation is a phenomenon involving two-way interactions among the tropical basins? Noel Keenlyside writes about a new study.

The living conditions for marine microorganisms in the Southern Ocean may dramatically worsen by the end of the century. More acidic water can make their territories shallower.

A new study provides evidence of substantial variations in past sea ice cover in the Norwegian Sea, instrumental for several abrupt climate changes between 32,000 and 40,000 years ago. 

Climate change could bring about major disruption for the Indus River and for the millions of people who depend on it. Yet why is it still so challenging to forecast the future of the Indus’ water resources? Michel Mesquita, Lu Li and others investigate that in their new book chapter.

Even though weather forecasts have become very good over the last decades, you can sometimes be waiting for snow that never falls. A new study searches for the origins of an erroneous forecast.  

Winter storm tracks near Norway are not always well represented in global climate models. A new study shows that removing known biases from the start can improve  the results. 

What caused abrupt climate swings known as the Dansgaard-Oeschger events of the last ice age?

Carbon composition is a combined signal of ocean circulation and local biological and chemical processes, a new study shows, drawing special attention to the Southern Ocean.

Ice from the Eemian, 125,000 years ago, has been found in ice cores from Greenland. But what did the ice sheet look like then? Andreas Plach writes about challenges in modeling past ice sheets.