global warming – Paranormal Activity

Climate Scientist responds to Sabine Hossenfelder on Climate Sensitivity

ClimateAdam — Fri, 02 Feb 2024 15:36:48 +0000

How hot will our planet actually get? Climate scientists try to answer this question by evaluating the “climate sensitivity”. And if you’ve watched the recent Sabine Hossenfelder, you may be left with the impression that climate change wasn’t much to worry about… but now it is. So I’m here to explain what the evidence is actually showing us, and why the situation is a little more nuanced than Sabine’s commentary may have suggested. And crucially I break down how climate scientists arrive at a number for the crucial “climate sensitivity”, to give us a sense for how much global warming we’re in for.

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Thanks so much for the input from:
Piers Forster https://twitter.com/piersforster
Kate Marvel https://twitter.com/drkatemarvel/
Zeke Hausfather https://twitter.com/hausfath

#ClimateChange #globalwarming

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==MORE INFO==

Sabine video: https://www.youtube.com/watch?v=4S9sDyooxf4
My video on landmark climate sensitivity paper: https://youtu.be/7tMAkhQCJ48?si=XxdpXJP2zOA3x4ko
Nature Comment on hot models: https://www.nature.com/articles/d41586-022-01192-2
Hot models too hot historically: https://esd.copernicus.org/articles/11/737/2020/esd-11-737-2020.html
… and for the last “ice age”
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021MS002776
Explanation of climate sensitivity: https://www.carbonbrief.org/explainer-how-scientists-estimate-climate-sensitivity/
The epic study on climate sensitivity: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019RG000678
Weather forecast to validate model: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019MS001986
Associated comment piece: https://www.nature.com/articles/d41586-020-01484-5
Why such forecasts tests should be carried out: https://rmets.onlinelibrary.wiley.com/doi/10.1002/qj.23
The James Hansen paper: https://academic.oup.com/oocc/article/3/1/kgad008/7335889
Critiques of it:
https://twitter.com/hausfath/status/1720098321161957761 (check the replies too)
https://michaelmann.net/content/comments-new-article-james-hansen
https://www.eenews.net/articles/james-hansen-is-back-with-another-dire-climate-warning/
https://www.washingtonpost.com/climate-environment/2023/12/26/global-warming-accelerating-climate-change/
Do climate protests work: https://journals.sagepub.com/doi/10.1177/2378023120925949
IEA net zero roadmap: https://iea.blob.core.windows.net/assets/9a698da4-4002-4e53-8ef3-631d8971bf84/NetZeroRoadmap_AGlobalPathwaytoKeepthe1.5CGoalinReach-2023Update.pdf

==CREDITS==

Sabine photo from Sabine Hossenfelder
Ice core clip from The Conversation
Ocean visual and temperature projection from Nasa
Greek floods by Weather events

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The Little Ice Age: Climate Change – Part 1 – Extra History

Extra History — Sat, 04 Nov 2023 17:29:47 +0000

Wondering what happens after The Little Ice Age: Climate Change? Then click here: https://nebula.tv/videos/extrahistory-the-little-ice-age-no-more-food-2 , to watch episode 2 a week early, RIGHT NOW, ad-free! Just click & get 40% off today!

Welcome to the ‘Little Ice Age’, where climate changes sent the world into unpredictable patterns. From clergy exorcising glaciers to communities torn apart by unusual weather phenomena, delve into a chilling era of Earth’s history and the profound impact it has on civilizations.

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Series Wrap-up & Recommended Reading / Lies Episode – Release Date: 12/9

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Artist: Nick DeWitt I Writer: Robert Rath I Voice: Matthew Krol I Video Editor: Devon House Creative I Audio Editor: Clean Waves I ♪ Opening Music by Demetori: http://bit.ly/1EQA5N7 I ♪ “Broad Street Pump” by Sean and Dean Kiner

#ExtraHistory #Science #History

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Is Earth’s Largest Heat Transfer Really Shutting Down?

PBS Terra — Tue, 22 Aug 2023 18:08:06 +0000

Check out Sharks Unknown: https://www.youtube.com/watch?v=AS2FdIcqlqg

With unprecedented heat waves and record-breaking global temperatures, it’s hard to believe that there might be a place on earth that has actually COOLED since the industrial revolution. But, it turns out, there is such a spot. The COLD BLOB off of Greenland mystified scientists for years, but new studies have uncovered a scary reality – this cool patch might be a warning of the impending collapse of a vital earth circulation system. And the consequences would be dire.

In this episode of Weathered, we travel to the Gulf Stream with the new PBS Terra show Sharks Unknown to experience the AMOC first hand. And we ask, what is the likelihood that the AMOC will collapse, and what would the consequences be?

Weathered is a show hosted by weather expert Maiya May and produced by Balance Media that helps explain the most common natural disasters, what causes them, how they’re changing, and what we can do to prepare.

This episode of Weathered is licensed exclusively to YouTube.

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Sources:
Ditlevsen & Ditlevsen. “Warming of a forthcoming collapse of the Atlantic meridional overturning circulation”. Nature Communications. 2023.

L. Caesar et al. “Current Atlantic Meridional Overturning Circulation weakest in last millennium.” Nature Geoscience. 2021

Chengfei He et al. “A North Atlantic Warming Hole Without Ocean Circulation.” Geophysical Research Letters. 2022.

Stefan Rahmstorf et al. “Exceptional twentieth-century slowdown in Atlantic Ocean overturning circulation.” Nature Climate Change. 2015.

Paul Keil et al. “Multiple drivers of the North Atlantic warming hole”. Nature. 2020.

David Armstrong Mckay et al. “Exceeding 1.5°C global warming could trigger multiple climate tipping points”. Science. 2022

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Prof Janette Lindesay on recent extreme weather events around the world

CNA — Tue, 01 Aug 2023 14:58:29 +0000

The month of July is all but set to go down in history as one marked by an unprecedented number of extreme weather events globally. In Asia, the dire picture largely ricocheted between deadly floods and scorching temperatures. Meanwhile, blistering heatwaves swept across the northern hemisphere, shattering temperature records across Europe and the US. Experts have described July 2023 as the hottest month ever globally. Professor Janette Lindesay, a climatologist at the Australian National University, shared more about the recent extreme weather events.

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Extreme weather alerts continue across southern US from Florida to Arizona

Al Jazeera English — Tue, 18 Jul 2023 04:19:58 +0000

80 million Americans are facing heat alerts, with records being broken across the county following a weekend of record breaking temperatures from Florida to Arizona.
Climate scientists say this is what they have been warning about for decades: more intense and longer lasting patterns of extreme weather due to global warming. And this year the El Nino climate phenomenon is exacerbating man made climate change.
2023 looks to be on track to be the hottest year on record.

Al Jazeera’s Shihab Rattansi reports.

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#UnitedState #USHeatwave #ClimateChange #GlobalWarming #HeatWaveAlert #ExtremeHeat #SouthwestHeatWave #HeatEmergency #ArizonaHeatwave #FloridaHeatwave

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Floods, Wildfires & Other Extreme Weather Events; Is Climate Change Behind July Devastation? BUZZ

India Today — Sat, 15 Jul 2023 04:15:44 +0000

The State of the Global Climate 2022 report, published by the World Meteorological Organization (WMO), found that extreme weather events are increasing in frequency and intensity around the world.

But we don’t need any report to tell us this. This truth is unveiling in plain sight now. Just look at some of the extreme weather events in just last one month. In this week’s Buzz Around The Globe Weekend Edition we delve into this issue deeply.

#buzzaroundtheglobe #buzzindiatoday #internationalnews #buzzworldnews
#canadafire #delhiflood #monsoon2023 #cliamatechange #floodinindia

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Scientists issue increasingly dire warnings as ocean surface temperatures spike

PBS NewsHour — Thu, 15 Jun 2023 22:49:40 +0000

The ocean is rapidly heating up, hitting record-breaking levels. The National Oceanic and Atmospheric Administration reported that ocean surface temperatures spiked in April and May to the highest levels recorded since the 1950s. All this could have dangerous consequences for aquatic life, hurricane activity and global weather patterns. Amna Nawaz discussed what’s happening with Kevin Trenberth.

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Global warming to hit 1.5C heat threshold by 2027

Sky News — Wed, 17 May 2023 11:05:51 +0000

The global temperature is set to exceed 1.5C above pre-industrial levels for the first time in the next five years, the World Meteorological Organisation (WMO) has warned.

There is a 66% chance of this temperature being recorded at least once between now and 2027 – which would mark the first time in human history.

However, scientists have stressed this would not mean the world had permanently surpassed the threshold.

Almost every country in the world has committed to trying to limit warming to ideally 1.5C above levels before the Industrial Revolution.

#globalwarming #climatechange #climatenews

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Too HOT and HUMID to Live: Extreme Wet Bulb Events Are on the Rise

PBS Terra — Tue, 09 May 2023 18:01:18 +0000

As climate change continues warming the planet, a new and invisible killer is emerging: extreme wet bulb temperatures. This refers to a potentially lethal combination of heat and humidity that, until now, have appeared somewhat infrequently around the world. But models predict that they are likely to become an increasingly big problem in the coming years.

In this episode we explore the intersection between climate science and meteorology to tell you where in the world is most at risk of these increasingly dangerous conditions.

This episode of Weathered is licensed exclusively to YouTube.

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Most Horrific Weather Moments Caught On Security Cameras

NA Weather — Wed, 03 May 2023 17:09:12 +0000

Most Horrific Weather Moments Caught On Security Cameras 2023 – When Mother Nature Got Angry.
Floods are made more likely by the more extreme weather patterns caused by long-term global climate change. Change in land cover—such as removal of vegetation—and climate change increase flood risk.
Extreme floods can be triggered by intense precipitation, longer duration, close repetition of precipitations or a combination of these.
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