Sunday, February 23News That Matters

Tag: Antarctic Ice

Study Shows Tenfold Increase in 40 Years Massive Surge in Antarctic Vegetation as Climate Change Accelerates

Study Shows Tenfold Increase in 40 Years Massive Surge in Antarctic Vegetation as Climate Change Accelerates

Breaking News, Climate Actions, Disasters
The Antarctic Peninsula long considered one of the most isolated and inhospitable regions on Earth, is experiencing a dramatic transformation as a result of climate change. A new study has revealed that vegetation cover in the area has increased more than tenfold over the past four decades, with satellite data showing a surge from less than one square kilometer in 1986 to nearly 12 square kilometers by 2021. Published in Nature Geoscience, the research, conducted by the universities of Exeter and Hertfordshire, along with the British Antarctic Survey, highlights the significant acceleration of this "greening" process. Between 2016 and 2021, the expansion rate surged by over 30%, with vegetation spreading by more than 400,000 square meters annually. The extreme warming in the polar regio...
Antarctic Ice Shelf Reveals Daily Movement Triggered by Elastic Waves from Whillans Ice Stream

Antarctic Ice Shelf Reveals Daily Movement Triggered by Elastic Waves from Whillans Ice Stream

Breaking News, Climate Actions, Environment
In a fascinating revelation, researchers studying the Ross Ice Shelf in Antarctica have uncovered a phenomenon where elastic waves cause the entire sheet to lurch forward once or twice a day. This unexpected discovery sheds light on the dynamic nature of ice shelves and their response to changing environmental conditions. The Ross Ice Shelf, the largest in Antarctica and roughly the size of France, experiences these significant movements triggered by the Whillans Ice Stream, a fast-flowing belt of ice in the West Antarctic Ice Sheet. Geophysicist Doug Wiens from Washington University in St. Louis explains that the entire shelf suddenly moves about 6 to 8 centimeters (2.4 to 3.1 inches) due to a slip on the ice stream that flows into it. These slip events, akin to movements along faul...