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Earth lost 28 trillion tons of ice in 23 years

Large amounts of melted ice can cause sea levels to rise, while also reducing the Earth’s ability to reflect solar radiation.

A small iceberg in an ice bay in southern Greenland. Photo: Business Insider.

Scientists from the University of Leeds, the University of Edinburgh and University College London analyzed satellite data on glaciers, mountains and ice sheets over the period 1994-2017 to find out the effects of global warming, Science Alert on 23/8 reported. The results show that, during this period, the world lost up to 28 trillion tons of ice. New research published in Cryosphere Discussions.

Melting glaciers and ice sheets caused sea levels to rise significantly, possibly up to one meter by the end of this century, the team found. “Every inch of sea level rise means about a million people will have to leave the lowlands where they live,” said Professor Andy Shepherd, director of the Center for Polar Observation and Modeling at the University of Leeds, said.

The disappearance of large amounts of ice could lead to other serious consequences, including affecting the biological health of the seas in the Antarctic and Arctic, and reducing the Earth’s ability to respond to solar radiation.

The new study’s results match with the worst predictions made by the United Nations Intergovernmental Panel on Climate Change (IPCC), the group of experts said. A NASA study also showed that the period 2010-2019 is the hottest decade ever recorded.

“In the past, scientists have been studying individual regions, for example Antarctica and Greenland, where the ice is melting. But this is the first study of all the ice that is disappearing from around the planet. The results surprised us, “Shepherd said. Most of the ice disappearing is almost certain to be a direct result of the warming climate, the team said.

The new study comes just a week after a team of experts at Ohio State University found the Greenland ice sheet may have been irreversible. Accordingly, the amount of snow that helps to build glaciers each year cannot keep up with the melting speed. This means that the Greenland ice sheet will continue to lose ice even as global temperatures stop rising.

The Greenland ice sheet is the world’s second largest ice sheet, after Antarctica. “We found that the amount of ice poured into the ocean is much greater than the snow that accumulates on the surface of the ice sheet,” said Michalea King, a researcher at Ohio State University’s Byrd Polar and Climate Research Center. know.

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