2023 SkS Weekly Climate Change & Global Warming News Roundup #31

A chronological listing of news and opinion articles posted on the Skeptical Science Facebook Page during the past week: Sun, July 30, 2023 thru Sat, Aug 5, 2023.

Story of the Week

The world inches closer to feared global warming 'tipping points': 5 disastrous scenarios

Climate change effects usually become clear over decades and centuries, but they seem to be everywhere this summer: temperature records broken constantlyocean waters as warm as hot tubs and world leaders so alarmed they've called this the "the era of global boiling."

And as concerning as these developments are, scientists have long worried about even more dramatic, looming and irreversible changes to the planet that could happen quickly. Even in the past year, there's evidence some of these scenarios are becoming more likely.

A paper in the journal Science in 2022 looked at several climate "tipping points" – conditions beyond which changes become self-perpetuating and difficult or impossible to undo. While the concept raised the hackles of some scientists, who suggested it was overly simplistic, the paper suggested even the possibility of such no-going-back points provided compelling reasons to limit warming as much as possible.

About a year later, several global systems that scientists have been concerned about are showing signs of becoming increasingly fragile.

Antarctic sea ice is at a record lowfires in Canada are reshaping terrain and polluting the air and record ocean temperatures are threatening coral. There's even new research published in July that suggests critical Atlantic Ocean currents could collapse sooner than expected, which could trigger rapid weather and climate changes.

But the news isn't all bad: There's some good news in the Amazon. And scientists continue to say that if humanity takes climate threats seriously and quickly moves to end carbon emissions, the scenarios below become less likely or at least less extreme.

Here are five tipping points scientists say could start to teeter sooner rather than later: 

Click here to access the entire article as originally posted on the USA Today website.

The world inches closer to feared global warming 'tipping points': 5 disastrous scenarios by Elizabeth Weise, Nation, USA Today, Aug 5, 2023

Articles posted on Facebook

Sunday, July 30, 2023

Monday, July 31, 2023

Tuesday, Aug 1, 2023

Wednesday, Aug 2, 2023

Thursday Aug 3, 2023

Friday Aug 4, 2023

Saturday Aug 5, 2023

Posted by John Hartz on Saturday, 5 August, 2023

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