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2018 SkS Weekly Climate Change & Global Warming News Roundup #51

Posted on 22 December 2018 by John Hartz

A chronological listing of news articles posted on the Skeptical Science Facebook Page during the past week, i.e., Sunday, Dec 15 through Saturday, Dec. 22.

Editor's Pick

Risks of 'domino effect' of tipping points greater than thought, study says

Scientists warn policymakers not to ignore links, and stress that ‘every action counts’

Arctic Sea Ice

When arctic ice melts, less sunlight is reflected, which raises global temperatures and increases the risk of forest fires. Photograph: Mario Tama/Getty Images 

Policymakers have severely underestimated the risks of ecological tipping points, according to a study that shows 45% of all potential environmental collapses are interrelated and could amplify one another.

The authors said their paper, published in the journal Science, highlights how overstressed and overlapping natural systems are combining to throw up a growing number of unwelcome surprises.

“The risks are greater than assumed because the interactions are more dynamic,” said Juan Rocha of the Stockholm Resilience Centre. “The important message is to recognise the wickedness of the problem that humanity faces.”

The study collated existing research on ecosystem transitions that can irreversibly tip to another state, such as coral reefs bleaching and being overrun by algae, forests becoming savannahs and ice sheets melting into oceans. It then cross-referenced the 30 types of shift to examine the impacts they might have on one another and human society.

Risks of 'domino effect' of tipping points greater than thought, study says by Jonathan Watts, Environment, Guardian, Dec 20, 2018

Links posted on Facebook

Sun Dec 16, 2018

Mon Dec 17, 2018

Tue Dec 18, 2018

Wed Dec 19, 2018

Thu Dec 20, 2018

Fri Dec 22, 2018

Sat Dec 23, 2018

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Comments 1 to 1:

  1. Very likely we have already set a cascade of tipping points in motion but just in case we haven't passed the critical point, we continue not only to emit the same amount of Carbon per year but actually increase it just to ensure that the ball will get over the peak and hurtle down the other side. We still have to keep trying - hope springs eternal and all that.  So why can't we see that there is one critical factor that is stoping the efforts of so many enlightened people who would likely turn the situation around with all their great efforts. Who Pays the Piper Calls the Tune.  As long as we allow vested interests to finance our politicians, the politicians will do the bidding of the vested interests.  It is really that simple.  We should abandon all our campaigns and come together on this one.  Then we could go back to our favorite hobby horse with a reasonable expectation of success.

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