NASA Animation Six Decades of a Warming Earth

The persistently jagged jet stream we have witnessed in recent weeks has led most recently to what some have termed a “Drunken Arctic.” Stumbling south with polar winds and snow, this unexpected meteorological event seems to have caught our collective attention. And why shouldn’t it? It is an unusual enough, if not unprecedented, event. And it has rekindled curiosity over how human-caused climate change may be impacting the jet stream and the weather systems associated with it.

So, is there a climate connection to this strange occurrence? While more study is certainly needed, I have been increasingly impressed by the growing body of evidence supporting the hypothesis that climate change may lead to more persistent meanders in the jet stream. In a world without global warming, the temperature difference between the freezing Arctic and warmer lower latitudes creates a pressure field that confines the jet stream to a relatively tight band around the Arctic, with wave-like meanders characterized by ephemeral “ridges” and “troughs.” As the Arctic melts and warms, however, that temperature difference is reduced, and the meanders of the jet stream potentially become more pronounced and more sluggish. The more sluggish and persistent those meanders, the more persistent the patterns of regional warmth where the jet stream pulls warm air northward, and the regional cold where it pulls arctic air south.

Warming
Looking at this image of temperature deviations we can see how the Arctic, in its “drunken” meandering, has fallen head over heels, hitting the southeastern U.S. like an over-enthusiastic reveler face-planting in the gutter shortly after closing time. The large purple region over the eastern U.S. represents weather 20 degrees F colder than the 1979-2000 average. Compare that to the massive red expanse over Alaska and Canada, which indicates weather 20 degrees F warmer than the same baseline.

Perfectly encapsulating the upside-down, hung-over Arctic is this remarkable observation, courtesy of Jeff Masters of the popular Weather Underground blog: At 10 p.m. on Jan. 26 the temperature in Homer, Alaska (54 degrees F) was warmer than any other place in the contiguous U.S. except southern Florida and southern California.

As we approach Groundhog Day, celebrated in the iconic nearby town of Punxsutawney, the question we’re all asking here in central Pennsylvania of whether or not we’ll see an extended winter may in fact depend on what is happening instead thousands of miles to the north in the melting Arctic.

And the very same jet stream configuration responsible for the southward plunging Arctic air mass that chilling the eastern U.S. is associated further to the west with a “ridge” of high pressure that is pushing the warm, moist subtropical Pacific air masses that would normally deliver plentiful rainfall (and snowpack) to California well to the north.

Climate scientists were beginning to suspect a decade ago that the dramatic loss of Arctic sea ice might alter the jet stream in precisely this way, favoring conditions eerily like what we are seeing right now in California: unprecedented and devastating drought.

So to conclude, I propose a toast to the Arctic, whose instability should serve as a wake-up call to those steeped in denial. When it comes to kicking our “fossil fuel addiction” (as former president George W. Bush referred to it), let’s hope we’re not much further from hitting rock bottom. Because when a drunken Arctic leaves Alaska warmer than Georgia in mid-winter, and California as high and dry as it has ever been, we should know we may have a problem.

Source | EcoWatch

Find us here

Get news from the CSGLOBE in your inbox each weekday morning

The views and opinions expressed in this article are those of the authors/source and do not necessarily reflect the position of CSGLOBE or its staff.

Paid content

China Is Turning The Rainforest Into Cheap Furniture For The U.S.

Driven by American demand for cheap furniture, China has become the greatest importer of illegal timber. The...

France Declares All New Rooftops Must Be Topped With Plants Or Solar Panels

A new law recently passed in France mandates that all new buildings that are built in commercial zones in France must be partially covered in...

California is about to become the first state in the US to require solar power installations on all new homes

The world's fifth largest economy —and possibly the first government in the world—is about to require solar panels for all new homes. The California Energy...

What's New Today

Georgia House Votes To Allow Citizens To Abolish Police Departments In The State

The Georgia House backed an effort on Friday to dissolve the Glynn County Police Department and any...

Leaked CDC document contradicts Pence claim that U.S. coronavirus cases ‘have stabilized’

Even as Vice President Mike Pence wrote in a Wall Street Journal op-ed published Tuesday that coronavirus...

Five bombshells about Trump from Bolton ‘s book

Excerpts from former national security adviser John Bolton ’s book about his time in the Trump administration...

Don’t Listen to Fox. Here’s What’s Really Going On in Seattle’s Protest Zone.

It seems I live in a city undergoing a “totalitarian takeover” that will lead to “fascist outcomes”...

MOST READ

What Is Agenda 21? Depopulation of 95% of the World By 2030

Most people are unaware that one of the greatest threats to their freedom may be a United Nations program which plans to depopulate 95%...

Georgia House Votes To Allow Citizens To Abolish Police Departments In The State

The Georgia House backed an effort on Friday to dissolve the Glynn County Police Department and any...

Don’t Listen to Fox. Here’s What’s Really Going On in Seattle’s Protest Zone.

It seems I live in a city undergoing a “totalitarian takeover” that will lead to “fascist outcomes”...

China Is Turning The Rainforest Into Cheap Furniture For The U.S.

Driven by American demand for cheap furniture, China has become the greatest importer of illegal timber. The...

Public Transport Made Free in Paris to Curb Capital’s Worst Pollution Levels in 10 Years

The highest levels of air pollution in ten years have been measured in Paris, provoking the government to ban motorists from roads, and place...

The psychology behind climate change denial

Climate change is a serious threat to humans, animals, and the earth’s ecosystems. Nevertheless, effective climate action has been delayed, partly because some still...

Asia’s First-Ever Vertical Forest Will Produce 132 Pounds Of Oxygen Each Day

When Stefano Boeri Architetti presented the idea of installing a vertical forest in Milan, people were beyond thrilled with the idea. Following the success of...

When Whistleblowers Tell the Truth They’re Traitors. When Government Lies It’s Politics

Immediately after Wikileaks released thousands of documents revealing the extent of CIA surveillance and hacking practices, the government was calling for an investigation —...

Researchers in China discover a 300 million year old screw embedded into rock

According to reports from Chinese News agencies, a mysterious object discovered in 2002 could be evidence of prehistorical civilizations The Lanzhou screw is believed to...

Monsanto Protection Act Part 2? New Bill Introduced Spells Bad News For GMO Activists

A couple of years ago, a bill was introduced (H.R. 933) allowing big biotech corporations, like Monsanto, to override United States federal courts on...

Russia Will Be The World’s FIRST Exporter Of Non-GMO Foods, Says President Putin

Putin is not a fan of Monsanto or bio-engineered anything, which is why, in a new address to the Russian Parliament last month, he...