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Study: Melting Of The World’s Glaciers Is Accelerating

Glaciers provide a vital water supply for surrounding areas, and their decline may result in severe food and water shortages

A study published Wednesday shows nearly all the world’s glaciers have been melting at an accelerated pace in recent years, accounting for rises in sea level over the last two decades.

In the study, published in the science journal Nature, an international group of scientists used high-resolution images from NASA’s Terra satellite to study 220,000 of the world’s glaciers between 2000 and 2019.

They found those glaciers lost an average of 267 billion tons – 267 gigatons – of ice per year.

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The study found melting increased over time, from an average of 227 gigatons in the early 2000s to an average of 298 gigatons each year after 2015.

The study showed the melt was raising sea levels by about 0.74 millimeters a year, or 21 percent of the overall sea-level rise observed during the period.

 Glaciers
Warming temperatures caused by climate change are melting glaciers and ice sheets all over the globe, according to scientists. Pixabay

Greenland and Antarctic ice sheets were excluded from the study.

Scientists have long warned that warming temperatures driven by climate change are shrinking glaciers and ice sheets around the world, contributing to higher sea levels that threaten the world’s populous coastal cities. The latest reports by the Intergovernmental Panel on Climate Change project that future sea levels will rise by more than a meter by 2100.

ALSO READ: Why The Himalayan Glaciers Are Highly Sensitive To Climate Change? Explained!

Glaciers in Alaska, Iceland, the Alps, the Pamir mountains, and the Himalayas were among the most impacted by melting, researchers found.

Glaciers with surrounding communities provide an important water source and their decline could lead to serious food and water shortages.

About half of the world’s glacial losses are in North America. (VOA/KB)

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