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Permafrost collapse is accelerating.

'We can’t prevent abrupt thawing of permafrost'...
'permafrost is collapsing suddenly as pockets of ice within it melt'.

nature.com/articles/d4158…
Permafrost-carbon feedback: abrupt thaw & thermokarst lake formation.

"Within my lifetime, ...within a few decades, it should peak."

Computer models of the behavior of Thermokarst lakes are not currently incorporated into global climate models. climate.nasa.gov/news/2785/unex…
Climate death spiral:

The continuous feedback loop of melting permafrost is speeding up, triggering amplifying feedbacks...

thinkprogress.org/dangerous-perm…
'difficult if not impossible to stop'.insideclimatenews.org/news/19022019/…
"Geologically speaking, it’s thawing almost overnight."
nationalgeographic.com/environment/20…
The recent rate of coastal permafrost erosion in the Arctic is six times higher than the historical rate.

thinkprogress.org/arctic-death-s…
Permafrost now melting at levels not expected until 2090.

independent.co.uk/news/world/ame…
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Ben See
@ClimateBen
'The Arctic is heading toward irreversible melting and ecosystem destruction, according to the National Oceanic and Atmospheric Administration.'

🔺the Arctic has lost nearly 95% of its oldest ice
grist.org/article/4-ways…
The Arctic has entered an unprecedented state that 'threatens global climate stability':

commondreams.org/news/2019/04/0…
"There is no evidence of any recovery of the sea ice,' said Mark Serreze, director of the U.S. National Snow and Ice Data Center. "We are heading toward a seasonally ice-free Arctic ocean."

23rd Sept 2019

abcnews.go.com/Technology/wir…
Read 5 tweets
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Ben See
@ClimateBen
Global crop failure from the 2020s onwards:

1.
'Yield responses to biophysical stresses are highly non-linear – once critical thresholds for temperature or water are breached, plants suffer severe damage and yields can fall precipitously.'

reports.weforum.org/global-risks-2…
2.
'If climate change is allowed to reach a point where these biophysical thresholds are exceeded routinely, crop failure will become the norm'

3.
The answer: dismantle industrial agriculture and transform this WEF extinction economy into something fair & safe. #agroecology
4.
1.5°C by 2030 means long-term food security can no longer be guaranteed:

'Without ambitious, determined action to reduce emissions and contain climate change at manageable levels, long-term food security cannot be guaranteed'

We've seen zero action since this 2016 report.⚠️
Read 3 tweets
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Ben See
@ClimateBen
The planet we think we're living on no longer exists:

🔺Earth will warm 2°C to 6°C within decades

🔺It took 5,000 years to warm 5°C when global warming happened at various times in the past 2 million years

🔺predicted warming rate: 20 times faster.earthobservatory.nasa.gov/features/Globa…
Welcome to Earth. 🔥

"It's very possible that both ecological systems and human systems may fail to adapt rapidly enough, with devastating consequences"

"this is a problem for now...in the next decade or two, we may see climates like that of the Pliocene"edition.cnn.com/2018/12/10/wor…
How many species will survive as we rocket towards 3°C - 4°C?

'Between 1°C and 2°C...most species, ecosystems and landscapes will be impacted and adaptive capacity will become limited.'

The decline in biodiversity will accelerate.

sciencedirect.com/science/articl…
Read 3 tweets

Related threads

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Christopher Cartwright
@chriscartw83
Thread
My analysis on potential #runawayclimatechange and the #IPCC goal of 1.5-2C target
And why/how i expect nasty surprises soon
First, a chart with trend lines showing warming speeding up
#methane #permafrost #arctic #antarctica
#ClimateCrisis #climatechange #gretathunberg
A few charts showing #breakout of temperatures, or potential #runawayclimatechange in 2019, from #alaska to #california or #europe
#ClimateAction #climatechange #gretathunberg
Why warmer soon? several factors
1/ the SUN
Sun is waking up, with solar spots appearing , and the solar minimum period is ending , with a weak solar maximum expected in 2023 .
Lagging time: 4 years
#sun #solarcycle #solarminimum

spaceweatherarchive.com/2019/11/02/sol…
Read 17 tweets
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Ruth Mottram
@ruth_mottram
Amazing footage - apropos this and the Watson River flood of 2012, my colleagues and I were inspired to write a paper looking at the potential for high runoff events in the future in this paper researchgate.net/publication/32…
In our future #climate simulations the region in western #Greenland that includes #Kangerlussuaq from the #icesheet to the shores of the #DavisStrait we show how melt + runoff of early 2000s was outpacing mid-century projections*

*Caveat: only one GCM #ECEARTH shown here
The more extreme the scenario - the more extreme the projected melting, but note the very high interannual variability.
Read 10 tweets
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Armond Ray Erickson
@ArmonRaE
#ClimateAlarmists ignore the fact that all of their propaganda efforts to scare people into submitting to expensive CO2 reduction schemes are having less than no restraining effect on the one & a half degrees of #GlobalWarming over the last two centuries.
vox.com/2015/5/15/8612…
Nothing being done now is having any effect on reducing CO2. We could help Nature do it the old fashioned way by planting a trillion trees. But that takes time.
#ClimateAlarmists prefer preventing the poorest people from trying to stay alive during winter.
livescience.com/65880-planting…
Scientists are proving that active geothermal sources around the globe are causing most of the glacier melting & ocean warming. And more of that heat should be harnessed to benefit humanity, as has been done throughout human history.
#GeothermalGlobalWarming #ClimateChange
Read 56 tweets
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Bruno van Wayenburg
@brunchik
de tweetstorm die terugkwam, deze keer netjes gebundeld zoals het heurt:
lichte en zware voorwerpen vallen even snel, dacht Galileo al (als je even buiten de luchtweerstand rekent)
1/20
gek eigenlijk: andere natuurkrachtenkrachten dan de zwaartekracht -magnetische krachten, statische elektriciteit- werken helemaal niet zo.
2/20 #equivalentieprincipe
Hoe zwaarder een voorwerp, hoe harder zwaartekracht trekt. Dat is de zware massa. Maar ook: hoe zwaarder een voorwerp, hoe trager het op gang komt, dat is de trage massa. #equivalentieprincipe
3/20
Read 20 tweets
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RESPONDER
@ERC_RESPONDER
In 2013 @IPCC_CH concluded “Surface meltwater, although abundant on the #Greenland ice sheet, does not drive significant changes in basal lubrication that impact on ice sheet flow”. Could the opposite be emerging as a new paradigm? Thread 👇 1/12. Read and tweet. #climateclimate
The #IPCC #5AR statement (above) refers to efficient evacuation of meltwater in large channels, which can slow down the #ice flow by removing water that otherwise would lubricate and promote faster sliding over the bed. 2/12
nationalgeographic.org/photo/8iceshee…
Evacuation of meltwater in efficient channels explains why #ice flow in some regions of #Greenland has slowed down despite year-on-year increases in air temperature and surface melting. But how widespread are those observations? 3/12
nature.com/articles/natur…
Read 13 tweets

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