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NickB79

(19,326 posts)
Sat Apr 13, 2024, 12:05 PM Apr 13

After climate tipping points, change will come slowly, then all at once

https://thehill.com/opinion/energy-environment/4585835-after-climate-tipping-points-change-will-come-slowly-then-all-at-once/amp/

The planetary danger signals are increasing. Climate scientists are beginning to worry we may be at a terrifying juncture, where the climate shifts dramatically from one state to another. An abrupt global warming episode, during which climate changes happen in decades, not centuries, and interrelated tipping points cascade into one another amplifying the sudden shift in the world climate, pushing the planet out of the temperate sweet spot we humans have been lucky enough to live in.

Could this sudden shift happen? Unfortunately, the answer is yes.

We can see it in the ice core record. About 11,500 years ago, during the Younger Dryas era, temperatures in Greenland leapt 10 degrees Celsius in a decade, with the rest of the world seeing a matching jump to a new state in a matter of decades, not centuries.

Sea levels rose rapidly by tens of meters, driven by Greenland ice melt and other ice loss in the Arctic and Antarctic. An entire area of northern Europe, Known as Doggerland, which linked the United Kingdom to Europe, disappeared forever beneath the waves. Until the shock of the Younger Dryas warming, my ancestors could have walked from Scotland to the Netherlands.


The 21st century is gonna see some things.
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TeamProg

(6,498 posts)
1. You can place your bets now that conservatives will be blaming Dems for not doing enough to curb greenhouse gasses
Sat Apr 13, 2024, 02:18 PM
Apr 13

nor to put heavier restrictions on fossil fuel usage.

Magoo48

(4,746 posts)
2. A long time apococaloptimist, I share the deductions outlined.
Sat Apr 13, 2024, 02:31 PM
Apr 13

As we are still in the throws of greed-driven social and political dominance, the big “Fuck You” to our next generations appears as firmly entrenched as ever. Pain and suffering are often the only dynamic which inspires rapid and significant change. Climate Catastrophe will inevitably provide the aforementioned pain and suffering in doses epic enough to move humanity off our present position.

Only the ability to rapidly adapt will save future lives. Interestingly, it is during such chaotic times that animals (hopefully including humans) and plants experience evolutionary leaps. And, as always, a little luck will he helpful.

The latest science, as well as well informed “laymen” like young miss Thunberg and her contemporaries, know what’s just over the horizon. They continue to raise the warning, which for all intents and purposes, is unheeded or ignored.

Oh well…

multigraincracker

(32,858 posts)
3. 8.1 billion people are about
Sat Apr 13, 2024, 02:33 PM
Apr 13

5 billion too many. If I make it another 15 years, I’ll be the same age as my parents were when they passed at 90.
My carbon foot print ends with me, I never reproduced.

erronis

(15,642 posts)
4. There are definitely/probably too many people on this planet given how we use resources.
Sat Apr 13, 2024, 02:43 PM
Apr 13

Going from 8 billion to 3 billion in a controlled fashion would be desirable.

Having it happen in a couple of decades of wars, famine, floods, disease is going to be horrific. Even for those billionaires who have bought retreats far from the madding crowd.

0rganism

(24,033 posts)
6. In chaotic systems, swings between attractors happen fast
Sat Apr 13, 2024, 02:52 PM
Apr 13

The slow initial changes reflect the pull of the original attractive stable orbit. When the deviation becomes sufficient, the system state will rapidly transition to its next stable attractor. Expect it. We will see it happen in the next decade. Impact on the biosphere will be immense, as species which evolved to their niches for thousands of years are suddenly displaced. The degree of human suffering, especially from famines and wars, will surprise those still able to observe it.

We too are evolved species living in a shared biosphere. Some of us have forgotten. All of us are about to be reminded.

appalachiablue

(41,321 posts)
8. TY, great post!
Sat Apr 13, 2024, 03:16 PM
Apr 13

The degree of human suffering, especially from famines and wars, will surprise those still able to observe it.

We too are evolved species living in a shared biosphere. Some of us have forgotten. All of us are about to be reminded.

IbogaProject

(2,887 posts)
7. We are going to "see" a lot in the 2020s.
Sat Apr 13, 2024, 03:12 PM
Apr 13

Over the next five years we will see lots of rapid shifts, mostly all adverse.

elocs

(22,707 posts)
10. I retired 10 years ago at the end of Obama's 2nd term, thinking I would cruise though retirement.
Sun Apr 14, 2024, 10:18 AM
Apr 14

Then, surprisingly, came 4 years of Trump (oh Dems & the Left, why couldn't you just have voted for Hillary?) along with Covid. Then came the 1/6 half-assed insurrection attempt, more Trump constantly whining about the stolen election, how he was robbed, along with his worshipful Maga cult. The icing on the cake will be global climate change coming to a head. But the earth will abide with or without what is living on it. We need the earth but it doesn't need us.

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