Snow cover duration was just above the twenty-fifth percentile of the 25-year satellite record. Snow albedo, also known as snow brightness, started low in early April and decreased throughout the ...

For further information, please see our April Arctic sea ice extent averaged 13.91 million square kilometers (5.37 million ...

The disappearance of sea ice in polar regions due to global warming not only increases the amount of light entering the ocean, but also changes its color. These changes have far-reaching consequences ...