Researchers at Ohio State University’s Byrd Polar and Climate Research Centersay say Greenland’s ice sheet has melted past the point of no return. They observed a constant state of loss based on nearly 40 years of satellite data from Greenland. Through decades, the researchers found, the ice sheets generally lost about 450 gigatons (about 450 billion tons) of ice each year from flowing outlet glaciers, which was replaced with snowfall. The Arctic has been warming at least twice as fast as the rest of the world for the last 30 years. The world’s second-largest ice body would continue to lose ice even if global temperatures stop rising. Greenland dumped an unprecedented amount of ice and water into the ocean during the summer of 2019, when a heat wave from Europe washed over the island.
Complete melting of the Greenland ice sheet could raise sea levels 23 feet (~7 metres) by the year 3000. The ocean would swallow coastal cities across the globe. And it’s a major fact for climate changing. Ice melt is exposing permafrost, frozen soil that releases powerful greenhouse gases. This could be linked to future disasters. However, scientists say that switching to less carbon-intensive forms of energy, like solar power, and reducing unsustainable logging and mining can help us avoid those disasters. “Things that happen in the polar regions don’t stay in the polar region,” is a warning message to think about, from Michalea King, a glaciologist at Ohio State University.