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Terrifying satellite photos reveal Antarctica just shed a Manhattan-sized chunk of ice

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The growing crack in the Larsen C ice shelf is the most dramatic example of change in Antarctica right now. But it isn’t the continent’s only frozen feature changing in a warming world.

Ice around the continent is disappearing as the air and water heat up and the less dramatic breakdowns are just as important to understanding the fate of the ice and the world’s coastal areas.

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Before and after satellite imagery show an iceberg breaking off the calving front of the Pine Island Glacier.
Credit: NASA Earth Observatory
 

The Pine Island Glacier on the coast of West Antarctica is a case in point. A massive iceberg roughly 225 square miles in size — or in more familiar terms, 10 times the size of Manhattan — broke off in July 2015. Scientists subsequently spotted cracks in the glacier on a November 2016 flyover. And in January, another iceberg cleaved off the glacier.

Satellite imagery captured the most recent calving event, which Ohio State glaciologist Ian Howat said “ is the equivalent of an ‘aftershock’” following the July 2015 event. The iceberg was roughly “only” the size of Manhattan, underscoring just how dramatic the other breakups have been.

Simon Gascoin, an ice and remote sensing expert at France’s National Center for Scientific Research, noted on Twitter that another crack could be seen just inland from where the iceberg calved off, raising the possibility of another calving event.

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In an email, he said that it’s hard to tie these individual events to climate change, but “many studies have shown that Pine Island Glacier is retreating and thinning. That the recent rifting and calving could totally be evidence of an ongoing, rapid disintegration of the ice shelf, mostly due to ocean warming.”

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The ocean under Pine Island Glacier’s ice shelf has warmed about 1°F since the 1990s. That’s causing the ice shelf to melt and pushing the grounding line — the point where the ice begins to float — back toward land, creating further instability.

Since 1992, Pine Island and some of its glacial brethren in West Antarctica have seen the fastest grounding line retreat of any glaciers on the continent.

Cracks have formed elsewhere on Pine Island Glacier including about six miles inland from the calving front, according to NASA. It’s not time to put the glacier and its ice shelf on death watch like the Larsen C ice shelf on the Antarctic Peninsula, but it’s ice that researchers plan to monitor closely in the coming years.

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The glaciers and ice shelves help hold back a massive ice sheet on land. Their failure would send that ice to the ocean, pushing sea levels up to 13 feet higher than they are today. Some research has indicated that the melt of these glaciers is unstoppable, though their disappearance won’t necessarily happen overnight.

Other part of Antarctica from the peninsula to East Antarctica are also in danger of slowly melting out and raising sea levels. Cutting carbon pollution presents the only path forward to stave off the worst impacts of a melting Antarctic.

This article was originally published at Climate Central

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… then let us make a small request. Like you, we here at Raw Story believe in the power of progressive journalism — and we’re investing in investigative reporting as other publications give it the ax. Raw Story readers power David Cay Johnston’s DCReport, which we've expanded to keep watch in Washington. We’ve exposed billionaire tax evasion and uncovered White House efforts to poison our water. We’ve revealed financial scams that prey on veterans, and efforts to harm workers exploited by abusive bosses. We’ve launched a weekly podcast, “We’ve Got Issues,” focused on issues, not tweets. Unlike other news sites, we’ve decided to make our original content free. But we need your support to do what we do.

Raw Story is independent. You won’t find mainstream media bias here. We’re not part of a conglomerate, or a project of venture capital bros. From unflinching coverage of racism, to revealing efforts to erode our rights, Raw Story will continue to expose hypocrisy and harm. Unhinged from corporate overlords, we fight to ensure no one is forgotten.

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‘Mental midget’ Stephen Miller absolutely demolished in MSNBC blast at Trump’s ‘misfit’ advisers

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Given the opportunity to discuss two profiles on White House adviser Stephen Miller -- published by the Washington Post and the New York Times late Saturday -- Democratic consultant Don Calloway jumped in with both feet to trash the man he called a "mental midget"."

Asked p on MSNBC about the controversial Miller's outsized influence on Donald Trump, Calloway didn't hold back.

"What goes through your head when you hear how much influence Stephen Miller has on immigration policy?" host Alex Witt asked.

"Stephen Miller is a mental midget, that's the best thing I can say," Calloway began to the sounds of laughter offscreen.

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Black woman reveals how Trump is ruining her marriage: ‘My white Republican husband is starting to hate me’

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A black woman revealed over the weekend how President Donald Trump and right-wing media are straining her marriage.

In a Twitter rant on Saturday, a woman going by the name Glass Butterfly hit a nerve by starting a discussion about the challenges of interracial marriage in the age of Trump.

"My white Republican husband is starting to hate me because the longer we live through this administration the 'BLACKER' I become," she revealed. "Any interracially and opposing politically affiliated couples going through this? Like...I have NO idea how to balance who we are..or are becoming."

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Lawmaker Rashida Tlaib calls for boycott of Bill Maher’s ‘Real Time’ over Israel comments

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Rep. Rashida Tlaib, D-Mich., suggested a boycott against HBO host Bill Maher after he denounced the international movement to boycott Israel as a "bullshit purity test by people who want to appear woke but actually slept through history class."

This article first appeared on Salon.

"Maybe folks should boycott his show," Tlaib wrote in a tweet on Saturday. "I am tired of folks discrediting a form of speech that is centered on equality and freedom. This is exactly how they tried to discredit & stop the boycott to stand up against the apartheid in S. Africa. It didn't work then and it won't now."

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