Profile image
By Climate Change Dispatch (Reporter)
Contributor profile | More stories
Story Views
Last Hour:
Last 24 Hours:

Scientists Find Antarctica’s Rapidly Cooling, Ice-Sheet Melt Natural, Not CO2

% of readers think this story is Fact. Add your two cents.

Natural variability rules in Antarctica. Scientists have identified clouds, wind, and localized solar heating – not CO2 – as the factors driving ice melt; rising CO2 leads to Antarctic cooling.

Antarctica rapidly cooling in recent decades

In a review of the scientific literature, Lüning et al. 2019 report Antarctica as a whole has undergone a cooling trend in recent decades.

The Antarctic Peninsula has cooled at a rate of -0.5°C per decade since the late 1990s.

West Antarctica as a whole has “slightly cooled” (or the warming has “plateaued”) over the past two decades.

East Antarctica “has not experienced any significant temperature change since the 1950s” with ice sheet mass gains and cooling during the past 15 years.

Image Source: Lüning et al. 2019

Rising CO2 leads to Antarctic cooling

Antarctica contains about 90% of the world’s ice.

Because the continent averages -28.2°C in summer and -60°C in winter, inducing even partial retreat for an ice sheet that averages 2.3 kilometers in height would require a substantial amount of heat energy.

This effectively rules out a human influence.

According to scientists, raising CO2 concentrations does not even lead to warming in Antarctica. Actually, scientists find Antarctica cools in response to rising CO2 concentrations, which means we humans may be contributing more to ice mass gains than to losses.

Image Source: Schmithüsen et al., 2015

Natural variability – clouds, wind, localized solar heating – drive Antarctic ice melt

The surface melting of portions of the West Antarctic Ice Sheet (WAIS) has received quite a bit of attention in media circles, often accompanied by scary warnings of ice sheet collapse and catastrophic sea-level rise.

For example, Dr. James Hansen – admitting his doomsday predictions are tendentiously designed to be “persuasive” – has claimed sea levels will rise by 10 feet by 2065 mostly due to Antarctic ice sheet melt.

Image Source: Slate

These harrowing warnings often seem to arise in response to observations of glacier calving events – large glaciers fissuring and breaking off from the ice sheet.

But glaciologists know that calving events are indicative of ice sheet thickening, not thinning. Glaciers calve when the ice accumulation has become so heavy and thick that the base of the ice sheet can no longer bear the load.

Image Source: Christmann et al., 2016

Yes, portions of Antarctica are undergoing ice melt. But any ice sheet recession and advancement are both natural. And modern ice melt is well within the range of what occurs naturally for Antarctica.

Indeed, as Jones et al. (2016) conclude, natural variability “overwhelms” any forced response in satellite era trend observations.

Image Source: Jones et al., 2016

In two new papers, scientists identify the natural mechanisms driving the recession of some of West Antarctica’s glaciers in recent decades.

Scott et al. (2019) conclude surface melt is driven by wind currents and downwelling longwave radiation from clouds.

Stewart et al. (2019) find localized solar heating of surface water can explain melting in small portions of the Ross Ice Shelf.

Considering the total Antarctic meltwater contribution to sea level rise may only amount to 0.34 of a centimeter since 1958 (Frederikse et al., 2018), it is quite reasonable to conclude that nothing unusual, unprecedented, or concerning is occurring in Antarctica that could be said to fall outside the range of natural variability.

Read more at No Tricks Zone

Support BeforeitsNews by trying our natural health products! Join our affiliate program
Order by Phone at 888-809-8385 or online at
Get our Free Ebook, "Suppressed Health Secrets" THEY don't want you to know!

APeX - Far superior to colloidal silver!  Desroys Viruses, Bacteria, Pathogens!
Ultimate Curcumin - Natural pain relief, reduce inflammation and so much more.
Supreme Fulvic - Nature's most important supplement! Vivid Dreams again!
MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy.
Oxy Powder - Natural Colon Cleanser! Cleans out toxic buildup!
B-12 - Supports healthy metabolism, brain function, hormone balance!
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Never Wax Your Car Again -
Protects vehicles for years with dazzling shine!
Smart Meter Cover - Reduces Smart Meter radiation! See Video!
Prodovite - The Secret To Healing is in the Blood!

Tactical Laser Blinds
Bring Batteries Back
New Laser Blinds Attackers Instantly! Bring Dead Batteries Back to life!

US Faces 100 Year Drought
Cut Power Bills by 65%
NASA - US Faces 100 Year Drought! Discovery Can Cut Power Bills by 65%
Report abuse


    Your Comments
    Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green




    Email this story
    Email this story

    If you really want to ban this commenter, please write down the reason:

    If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.