• Antarctic ice sheets. (Credit: NASA)
    Antarctic Ice Sheets Weakened By ‘Upside-Down Rivers’

    Antarctic ice sheets are very vulnerable to climate change, scientists say, because they feel its impacts from above and below. Warmer air temperatures come down at them, while warmed ocean waters are creating areas of heated ocean...

  • Rivers of melted ice on Greenland. (Credit: Maria-José Viñas / NASA Earth Science News Team)
    Rising Sea Levels Linked With Greenland Changes

    Scientists at Rutgers University have found that rising sea levels are linked with a number of trends around Greenland. These include vanishing Arctic sea ice, persistent weather systems and surface ice melting on the island itself. During...

  • The Riiser-Larsen Ice Shelf in Antarctica (Credit: NASA)
    Antarctic Ice Sheet Melt Could Cause Catastrophic Sea Rises

    Already melting in response to global warming, the Antarctic ice sheet may collapse if greenhouse gases aren’t curbed, scientists warn in a release from Victoria University of Wellington. If the ice sheet collapses, the sea level could...

  • Caribou roaming the tundra near the experimental snow fence sites. (Credit: Miquel Gonzalez-Meler)
    More Snow May Increase Alaskan Tundra Permafrost Degradation

    An increase in snowfall is likely to lead to more Alaskan tundra permafrost degradation and changes in methane and CO2 production and absorption.

  • Tundra landscape near Nome, Alaska. (Credit: Charles Koven)
    Alaskan Tundra Active Layer In Danger Of Microbial Degradation

    Permafrost health and its eventual degradation is a persistent concern for many scientists. Permafrost can be defined as soil deep below the surface that remains frozen for at least two years. In contrast, the active layer is...

  • Shrinking Ice Sheet Dam At Last Ice Age’s End Changed Ocean Circulation

    An ice sheet acted as a dam for a large South American lake during the last Ice Age. When the sheet shrank at the Age’s end, huge amounts of water ran out into the ocean. According to...

  • Location of the Thwaites Glacier (Credit: J.B. Bird/Jackson School of Geosciences)
    Global Warming: West Antarctic Ice Sheet Risks Collapse

    A critical question of climate research is: How much will global sea levels rise due to global warming effects and how quickly will that happen? In a release from the Alfred Wegener Institute, researchers used climate models...

  • Scientists collect water samples during snowmelt season at the Saddle site at Niwot Ridge. (Credit: Stephen Schmidt / National Science Foundation)
    On Niwot Ridge, Continuing Glacier Loss

    University of Colorado scientists lead an effort to chart ongoing glacier loss on Niwot Ridge and in the Green Lakes Valley nearby.

  • Greenland's average ice speed over the last nine thousand years (top left), its current speed (bottom left) and the difference between them (right). (Credit: Joseph A. MacGregor)
    Scientists Create Map Of Greenland Ice Sheet Moves Across 9,000 Years

    The Greenland Ice Sheet is on the move and has been for thousands of years. For the first time, however, scientists have managed to capture the sheet’s movements over the past 9,000 years as ice has flowed...

  • Polar Ice infographic. (Credit: Nate Christopher / Fondriest Environmental)
    Infographic: Polar Ice

    The Winter 2015 print edition of the Environmental Monitor had a focus on national parks and specifically the impacts that humans have had on them despite being set aside for protection in the parks system. Here’s more...

  • The East Pacific Rise is a mountain range under the Pacific Ocean. (Credit: MBARI/NOAA)
    Magma From Ocean Ridges Can Impact Extent Of Ice Sheets

    The advance and retreat of ice sheets isn’t solely a water-atmosphere phenomenon, according to a release from the University of Connecticut. There are other factors at play, scientists from the university have found. Using sedimentary records as...

  • Whillans Ice Stream field camp on Antarctica. (Credit: Matt Siegfried / Scripps Oceanography)
    High Melt Rates On Ross Ice Shelf

    Studying along Antarctica’s Ross Ice Shelf, scientists have found that the melt rate of the ice shelf is much higher than expected, according to a release from the Scripps Institution of Oceanography. The rate is about 25...

  • firn ice arctic
    Greenland’s Firn Ice Absorbing Less Meltwater

    With special boring barrels and ground-penetrating radar, York University researchers discover the effects of less absorbent firn ice on future sea levels.

  • Glacial trough the Upper Rhine, Germany. (Credit: Public Domain)
    Human Carbon Emissions May Delay Next Ice Age

    Researchers exploring the beginnings of the last several ice ages have found a relationship between insolation, or exposure to the sun’s rays, and atmospheric carbon dioxide. Conditions now, with low summer insolation, would typically indicate the beginning...

  • Great Lakes ice cover was 12.3% on January 19, 2016. (Credit: NOAA / GLERL)
    Great Lakes Ice Cover Passes 10 Percent

    As of mid January, the percentage of ice cover on the Great Lakes had just crept over 10 percent, according to mlive. And scientists predict that there is little chance it will climb much higher over the...