Quantcast
Connect with us

South Pole warming three times faster than rest of Earth: study

Published

on

South Pole (Fernanda Reubll Direccion Nacional del Antartico:AFP

The South Pole has warmed three times faster than the rest of the planet in the last 30 years due to warmer tropical ocean temperatures, new research showed Monday.

Antarctica’s temperature varies widely according to season and region, and for years it had been thought that the South Pole had stayed cool even as the continent heated up.

Researchers in New Zealand, Britain and the United States analyzed 60 years of weather station data and used computer modeling to show what was causing the accelerated warming.

ADVERTISEMENT

They found that warmer ocean temperatures in the western Pacific had over the decades lowered atmospheric pressure over the Weddell Sea in the southern Atlantic.

This in turn had increased the flow of warm air directly over the South Pole — warming it by more than 1.83C (about 3.3F) since 1989.

Authors of the research said the natural warming trend was likely boosted by manmade greenhouse gas emissions and could be masking the heating effect of carbon pollution over the South Pole.

“While temperatures were known to be warming across West Antarctica and the Antarctic Peninsula during the 20th century, the South Pole was cooling,” said Kyle Clem, a researcher at Victoria University of Wellington, and lead study author.

“It was suspected that this part of Antarctica… might be immune to/isolated from warming. We found this is not the case any more,” he told AFP.

ADVERTISEMENT

The data showed that the South Pole — the most remote spot on Earth — was now warming at a rate of around 0.6C (1.1F) a decade, compared with around 0.2C (1.4F) for the rest of the planet.

The authors of the study, published in the Nature Climate Change journal, attributed the change to a phenomenon known as the Interdecadal Pacific Oscillation (IPO).

The IPO cycle lasts roughly 15-30 years, and alternates between a “positive” state — in which the tropical Pacific is hotter and the northern Pacific is colder than average — and a “negative” state where the temperature anomaly is reversed.

ADVERTISEMENT

The IPO flipped to a negative cycle at the start of the century, driving greater convection and more pressure extremes at high latitudes, leading to a strong flow of warmer air right over the South Pole.

Clem said that the 1.83C (3.3F) level of warming exceeded 99.99 percent of all modeled 30-year warming trends.

ADVERTISEMENT

“While the warming was just within the natural variability of climate models, it was highly likely human activity had contributed,” he said.


Report typos and corrections to: [email protected].
READ COMMENTS - JOIN THE DISCUSSION
Continue Reading

Breaking Banner

‘Get the hell out!’: Trump supporters freak out when protesters show up to Lindsey Graham event

Published

on

A small group of protesters came to one of Lindsey Graham's latest campaign events, and they were quickly attacked by supporters of President Donald Trump chanting "four more years."

Graham's event seemed to have more support for Trump than for Graham at his own weekend event. It's unknown why the Trump supporters were not chanting for Graham.

"Get the hell out!" one Trump supporter can be heard shouting. He and another older man were seen wagging their fingers

At least one Graham protester could be seen holding up a sign with Justice Ruth Bader Ginsburg.

The South Carolina senator is fighting for his political career and many other Republicans struggling to hold onto their seats. Graham is now being confronted with past comments he made saying that no president, regardless of the party, should make a Supreme Court pick right before his or her election.

Continue Reading

Breaking Banner

Black man takes N-word spewing racist to school — and makes him promise to never do it again

Published

on

When a racist White guy at a marina shouted out the N-word at a group of Black men, he probably didn't count on their response being a history lesson, but that's precisely what happened.

While President Donald Trump is claiming that Black community members are beating and killing White racists and responding with general violence, the two men showed a different reality.

"What made you say it?" the men asked.

The white guy shrugged.

"You that racist?" one of the men asks.

"Uh, no, I--" the White guy tried to answer.

"Then why would you call us a n*gger?" one of the men asks.

Continue Reading
 

Breaking Banner

Lamar Alexander refuses to stand against Trump Supreme Court choice

Published

on

Sen. Lamar Alexander (R-TN) is an outgoing Senator but he is firmly supporting President Donald Trump's nominee to the U.S. Supreme Court.

In a statement released Sunday, Alexander claimed that the so-called "McConnell Rule" doesn't count because the Senate and the White House is ruled by Republicans. The "McConnell Rule" was never a rule until McConnell decided he didn't want former President Barack Obama to nominate another justice when conservative Justice Antonin Scalia died suddenly.

"Senator McConnell is only doing what Democrat leaders have said they would do if the shoe were on the other foot," said Alexander.

Continue Reading
 
 
You need honest news coverage.  Help us deliver it.  Join Raw Story Investigates for $1. Go ad-free. LEARN MORE