Ominous Stat: Arctic Sea Ice Extent Way Under-Performed This Winter And Set A Bad Record

The winter "maximum" sea ice extent in the Arctic was
the lowest on record this year. That's an ominous sign for 
more climate change coming down the pike.

 It's official.

The extent of Arctic sea ice, which normally reaches its peak in March, was pretty pathetic this year. 

It's a sign climate change continues unabated, and it's a factor that could help accelerate the problem. 

First, the immediate issue at hand, per the Washington Post:

 "Just 5.53 million square miles of ice had formed as of March 22 this year - the smallest maximum extent in the 47-year satellite record, according to the National Snow and Ice Data Center. Since then the ice has already begun to melt again."

WaPo goes on:

"The record comes age a grim time for ice in all corners of the globe. In Antarctica, which has historically been more isolated from the effects of human-causing warming, sea ice shrank this month to the second lowest extent on record.  Research published in the journal Nature in February found that Earth's glaciers are dwindling at an accelerating rate,"

Back up there in the Arctic, this year's maximum ice extent was 31,000 square miles smaller than the previous record. That 31,000 square miles is about the same size as South Carolina. 

The Arctic is warming much faster than the rest of the globe. This winter was a classic example. Some areas of the far north were as much as 22 degrees Fahrenheit above average, which helps explain why Arctic ice didn't freeze as it should have

When there's less sea ice, the Arctic can warm even faster. More ice means when the sun shines on those gleaming white surfaces, bouncing the sun's heat back up into space.

When there's blue open water instead of ice up there in the Arctic, the sun's warmth is absorbed by that water Or as WaPo explains:

"With so little sea ice in the Arctic this year, more sunlight will be able to reach the open ocean, which absorbs more than 90 percent of the radiation that hits it. This will further warm the region, accelerating ice melt and exposing even more water to the light."

That's known as a feedback loop. Arctic ice melts because of climate change. That allows more heat to come in, melting even more ice and accelerating climate change even more. 

As I always like to say, what goes on the Arctic doesn't stay in the Arctic.  

Sure, the lack of ice makes the Arctic melt even faster, but the warming effect does to an extent spread all over the world. It would just make our recent spate of record and near record hot years just keep going and going, like some torrid, evil Energizer Bunny.  

A lack of ice in the Arctic won't in itself make sea levels rise. As you've probably heard me say before. If the ice cubes in your glass of gin and tonic melt, it won't make the glass overflow. But the Arctic heat that might last through the summer can bleed on over to the Greenland ice cap, which is above sea level. The more that ice cap melts, the higher sea levels go.