Doorgaan naar hoofdcontent

Arctic Ice


Arctic ice falls to record winter low after polar 'heatwaves'

Extent of ice over North pole has fallen to a new wintertime low, for the third year in a row, as climate change drives freakish weather

Such thin ice now could see record low summertime sea-ice conditions in the Arctic next September.
 Such thin ice now could see record low summertime sea-ice conditions in the Arctic next September. Photograph: Operation IceBridge/Nasa

The extent of Arctic ice has fallen to a new wintertime low, as climate change drives freakishly high temperatures in the polar regions.
The ice cap grows during the winter months and usually reaches its maximum in early March. But the 2017 maximum was 14.4m sq km, lower than any year in the 38-year satellite record, according to researchers at the US National Snow and Ice Data Centre (NSIDC) and Nasa.
“I have been looking at Arctic weather patterns for 35 years and have never seen anything close to what we’ve experienced these past two winters,” said NSIDC’s director, Mark Serreze. 2017 is the third year in a row the Arctic’s winter ice has set a new low. 


The new record comes a day after the UN’s World Meteorological Organisation warned that the record-breaking heat that made 2016 the hottest year ever recorded has continued into 2017, pushing the world into “truly uncharted territory”
The dramatic melting of Arctic ice is already driving extreme weather that affects hundreds of millions of people across North America, Europe and Asia, according to emerging research.
The extreme low in winter Arctic ice follows a very warm autumn and winter, the NSIDC scientists said, with air temperatures 2.5C above average across the Arctic Ocean. Temperatures have soared even higher in places, creating polar “heatwaves”. 
Data from the European Space Agency’s CryoSat-2 satellite also shows that this winter’s ice cover was slightly thinner than over the past four years. 
“Thin ice and beset by warm weather – not a good way to begin the melt season,” said NSIDC’s lead scientist, Ted Scambos. Prof Julienne Stroeve, at University College London, said: “Such thin ice going into the melt season sets us up for the possibility of record low sea-ice conditions this September.” 
The Arctic ice cap fell to its second lowest summer extent on record in September 2016, just ahead of the lowest ever mark set in 2012. “The long-term decline is a clear indicator of climate change,” said Nasa scientist Walt Meier.


A record low has also been set in the southern hemisphere, currently in the summer season, where Antarctic sea ice fell to it lowest extent on 3 March, at 2.1m sq km – the lowest in the satellite record. However, scientists caution that Antarctic ice extent is highly variable from year to year.
Rod Downie, WWF’s polar programme manager, said: “The annual freeze and thaw of sea ice in the polar regions is like the beating heart of our planet, driving ocean circulation and regulating our climate. But sea ice is in decline in a warming world and the records have been shattered this year.
“We need to act now to lower our carbon emissions by improving energy efficiency, switching from fossil fuels to renewable energy and tackling climate change head on,” he said.

Since you’re here …

… we’ve got a small favour to ask. More people are reading the Guardian than ever, but far fewer are paying for it. Advertising revenues across the media are falling fast. And unlike many news organisations, we haven’t put up a paywall – we want to keep our journalism as open as we can. So you can see why we need to ask for your help. The Guardian’s independent, investigative journalism takes a lot of time, money and hard work to produce. But we do it because we believe our perspective matters – because it might well be your perspective, too.

Reacties

Populaire posts van deze blog

Geert Mak Pleit Nu Voor Vriendschap met Rusland

Ik kwam zojuist mijn oude vriend, de bestseller-auteur en mainstream-opiniemaker Geert Mak in de regen op straat tegen. Na elkaar te hebben begroet, vertelde Geert mij dat hij van oordeel is dat Europa zo snel mogelijk met Rusland om de tafel moet gaan zitten, om de opgelopen spanningen te deëscaleren. De VS heeft heel andere belangen dan 'wij,' aldus Mak, die benadrukte dat de macht van 'onze' Atlantische bondgenoot ingrijpend aan het afnemen is. Kortom, ik hoorde wat ikzelf al enige jaren op mijn weblog schrijf. Opvallend hoe een Nederlandse opiniemaker binnen zo'n betrekkelijk korte tijd zo wezenlijk van oordeel kan veranderen.  Immers, Mak’s gevaarlijke anti-Rusland hetze was een treffend voorbeeld van zijn opportunisme. Mei 2014 beweerde op de Hilversumse televisie de zogeheten ‘chroniqueur van Amsterdam, Nederland, Europa en de VS,’ dat er sprake was van een 'Russische gevaar,’ aangezien ‘meneer Poetin’ aan ‘landjepik’ deed en dat de Russische president d…

America Has Been at War 93% of the Time Since 1776

America Has Been at War 93% of the Time – 222 out of 239 Years – Since 1776 By Washington's Blog Global Research, December 26, 2017 Washington's Blog 20 February 2015 Region:  Theme: 

Native American Rape Survivors

A sign marks the entrance to White Earth Indian Reservation in Mahnomen County, Minn. (J. Stephen Conn / CC 2.0) WHITE EARTH RESERVATION, Minn.—Candice (not her real name) awoke with a start. Someone was pulling down her sweatpants. It was a male friend. “Stop!” she shouted. He kept groping her. She kicked him and he fell off the bed. She dashed out of the bedroom, tripping and tumbling down the stairs. Gripped with fear, she heard his footsteps behind her in the dark and forced herself to stand upright as she staggered out to the porch. Candice was still intoxicated. She got into her car and drove into a ditch. A white police officer pulled up. She struggled to hold back tears as she told him about the attempted rape. All the officer saw was a drunk and disorderly Native American woman. He dismissed Candice’s report of sexual assault as a lie she had made up to avoid getting a DUI. He did not take her to the hospital for a forensic exam. The sexual assault was not recorded in his pol…