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Antarctica’s Ice Melting Six Times Faster Due To Global Warming: Study

Warming ocean water will only speed up ice loss in the future.

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Antarctica, Ice
The Collins glacier on King George Island has retreated in the last 10 years and shows signs of fragility, in the Antarctic, Feb. 2, 2018. VOA

Global warming is melting ice in Antarctica faster than ever before — about six times more per year now than 40 years ago — leading to increasingly high sea levels worldwide, scientists warned on Monday.

Already, Antarctic melting has raised global sea levels more than half an inch (1.4 centimeters) between 1979 and 2017, said the report in the Proceedings of the National Academy of Sciences (PNAS), a peer-reviewed US journal.

And the pace of melting is expected to lead to disastrous sea level rise in the years to come, according to lead author Eric Rignot, chair of Earth system science at the University of California, Irvine.

“As the Antarctic ice sheet continues to melt away, we expect multi-meter sea level rise from Antarctica in the coming centuries,” Rignot said.

Iceberg, Antarctica
Iceberg, Antarctica, Pixabay

A rise of 1.8 meters (six feet) by 2100, as some scientists forecast in worst-case scenarios would flood many coastal cities that are home to millions of people around the world, previous research has shown.

For the current study, researchers embarked on the longest-ever assessment of ice mass in the Antarctic, across 18 geographic regions.

Data came from high-resolution aerial photographs taken by NASA planes, along with satellite radar from multiple space agencies.

Researchers discovered that from 1979 to 1990, Antarctica shed an average of 40 billion tons of ice mass annually.

By the years 2009 to 2017, the ice loss had increased more than sixfold, to 252 billion tons per year.

A glacier is shown in a photo taken in Half Moon Bay, Antarctica, Feb. 18, 2018.
A glacier is shown in a photo taken in Half Moon Bay, Antarctica, Feb. 18, 2018. VOA

Even more worrying, researchers found that areas that were once considered “stable and immune to change” in East Antarctica, are shedding quite a lot of ice, too, said the study.

“The Wilkes Land sector of East Antarctica has, overall, always been an important participant in the mass loss, even as far back as the 1980s, as our research has shown,” Rignot said.

Also Read: Emission of CO2 Levels Higher In Antarctica Than Believed

“This region is probably more sensitive to climate than has traditionally been assumed, and that’s important to know, because it holds even more ice than West Antarctica and the Antarctic Peninsula together.”

Warming ocean water will only speed up ice loss in the future, Rignot said.

Recent research has shown that oceans are heating up faster than previously thought, setting new heat records in the last few years. (VOA)

Next Story

Spain Takes a Step Forward to Combat Climate Change

Spain Declares Climate Emergency, Gets Climate Plan Ready

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Climate Change
People march during a worldwide protest demanding action on climate change in Barcelona, Spain. VOA

Spain’s new government declared a national climate emergency on Tuesday, taking a formal first step toward enacting ambitious measures to fight climate change.

The declaration approved by the Cabinet says the left-of-center Socialist government will send to parliament within 100 days its proposed climate legislation. The targets coincide with those of the European Union, including a reduction of net carbon emissions to zero by 2050.

Spain’s coalition government wants up to 95% of the Mediterranean country’s electricity to come from renewable sources by 2040. The plan also foresees eliminating pollution by buses and trucks and making farming carbon neutral.

Climate Change
Young environmentalists demonstrate to demand measures against climate change. VOA

Details of the plan are to be made public when the proposed legislation is sent to parliament for approval.

More than two dozen countries and scores of local and regional authorities have declared a climate emergency in recent years.

Scientists say the decade that just ended was by far the hottest ever measured on Earth, capped off by the second-warmest year on record.

Also Read- Music Streaming Giant Spotify Works On New Feature To Share Story Alongside Public Playlists

Also Tuesday, young climate activists including Greta Thunberg told the elites gathered at the World Economic Forum in Switzerland they are not doing enough to deal with the climate emergency and warned them that time was running out. (VOA)