Jonathan Overpeck
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greatlakespecktwo.bsky.social
Jonathan Overpeck
@greatlakespecktwo.bsky.social
Environmental/Climate scientist for 35+ years; NAS Member. Samuel A. Graham Dean, @UMSEAS @UMICH. Tweets my own. Thinking grad school? Join us at @UMSEAS.
In case you were wondering - the sale of electric vehicles continues to grow at the expense of internal-combustion vehicles.
www.canarymedia.com/articles/ele...
Chart: EVs are ascendant — and gas cars are past their prime
Sales of gas-only vehicles are down by 31% from their peak, while electric vehicle sales are growing rapidly worldwide, largely due to China.
www.canarymedia.com
November 21, 2025 at 3:26 PM
Sea level rise is accelerating thanks to climate change. This doesn't just mean coastal homes falling into the ocean. Bigger problems are on the horizon now.
abcnews.go.com/US/thousands...
Thousands of toxic sites in US at risk of flooding in coming decades due to sea level rise: Study
Sea level rise caused by climate change could cause thousands of toxic sites in the U.S. to flood in the coming decades, according to new research.
abcnews.go.com
November 21, 2025 at 2:34 PM
More proof that wind farms have no problem generating HUGE amounts of electricity in cold weather.
www.thetimes.com/business/com...
Wind farms generate record power on cold November evening
Turbines produced record high of 22.7 gigawatts of electricity at 7.30pm on Tuesday last week, accounting for 55 per cent of Britain’s electricity mix
www.thetimes.com
November 20, 2025 at 2:04 PM
This is what climate change looks like - seriously threatened water supplies. Images from Iran look similar to those of the Colorado River in the US, now in 26th year of hot drought.
www.intellinews.com/iranian-dam-...
Iranian dam effectively shut down due to ongoing drought
Iran's Amir Kabir Dam, commonly known as the Karaj Dam, has reached its dead storage level, leaving no safe capacity for further water extraction, ...
www.intellinews.com
November 20, 2025 at 1:59 PM
This is what climate change looks like - more hot drought, more people going hungry.
reliefweb.int/report/somal...
Somalia: Only one in three people in need get food support as drought-induced hunger crisis worsens - Somalia
News and Press Release in English on Somalia about Food and Nutrition, Health and Drought; published on 19 Nov 2025 by Save the Children
reliefweb.int
November 20, 2025 at 1:57 PM
A MAJOR reason we need to accelerate action to halt greenhouse gas emissions is that we're nearing planetary tipping points like the ones described in this piece. Ice sheet and permafrost loss will translate into much larger climate change too.
www.npr.org/2025/11/19/n...
3 massive changes you'll see as the climate careens toward tipping points
Scientists are increasingly concerned that the planet is headed for massive, irreversible changes due to global warming. In some cases, those changes have already begun.
www.npr.org
November 20, 2025 at 1:54 PM
And EVs are getting cleaner each year: "If you've wondered whether electric vehicles are really that much cleaner than their gas-powered cousins, a new study says the answer is a resounding yes. "
www.thecooldown.com/green-tech/e...
Researchers make stunning discovery about electric vehicles: 'You're far ahead'
A study from researchers at Duke University says that driving electric vehicles rapidly reduces CO2 emissions compared to gas-powered cars.
www.thecooldown.com
November 19, 2025 at 7:44 PM
There is a lot of drought currently in the USA.
droughtmonitor.unl.edu/CurrentMap.a...
November 14, 2025 at 3:45 PM
Nice to see the US at the COP. Thx for the video @Saleemali. For more, listen to www.outrageandoptimism.org who just interviewed @cagovernornewsom.bsky.social
November 12, 2025 at 2:40 PM
Reposted by Jonathan Overpeck
Great to hear in person @gavinnewsom.bsky.social give this impressive speech at #Cop30 yesterday highlighting the bipartisan history of environmental action and California leadership against all odds cc: @petergleick.bsky.social @deepseadawn.bsky.social @katharinehayhoe.com
November 12, 2025 at 10:22 AM
Need some good news? India "can now meet half of its electricity demand with wind, solar, and hydropower"
(of course, it's also a story about how the US is loosing out on one of the biggest new markets of the 21st Century - not good news)
www.nytimes.com/2025/11/10/c...
A Flood of Green Tech From China Is Upending Global Climate Politics
www.nytimes.com
November 11, 2025 at 9:58 PM
Bad news for large natural carbon sinks: "Our findings suggest the potential for a similar response to climate change by woody aboveground biomass in moist tropical forests globally, which could culminate in a long-term switch from carbon sinks to carbon sources."
www.nature.com/articles/s41...
Aboveground biomass in Australian tropical forests now a net carbon source - Nature
A transition from carbon sink to source for the aboveground woody biomass of moist tropical Australian forests has occurred, driven by increasingly extreme climate anomalies.
www.nature.com
November 7, 2025 at 10:10 PM
Reposted by Jonathan Overpeck
The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."
China’s clean-energy revolution will reshape markets and politics
The world’s biggest manufacturer now has an interest in the world decarbonising
www.economist.com
November 7, 2025 at 11:05 AM
Reposted by Jonathan Overpeck
Finally out! The outcome of a virtual workshop in Feb 2024 with modelers and observationalists to put together data and protocols to include historical changes in ice sheet/ice shelf discharge in CMIP models. Hopefully not too late for some CMIP7 runs!

gmd.copernicus.org/articles/18/...
Datasets and protocols for including anomalous freshwater from melting ice sheets in climate simulations
Abstract. Anomalous freshwater fluxes from the Greenland and Antarctic ice sheets and ice shelves are impacting the surrounding oceans, and we need to be able to account for these effects in climate m...
gmd.copernicus.org
November 7, 2025 at 9:31 PM
Coastal flooding could get much worse: "For a scenario in which emissions keep increasing throughout the twenty-first century, the disappearance of many Antarctic ice shelves could unleash a 10-metre increase in sea levels." www.nature.com/articles/d41...
Most Antarctic ice shelves are set to disappear if greenhouse-gas emissions remain high
The disappearance of many Antarctic ice shelves could lead to a sea-level rise of 10 metres.
www.nature.com
November 7, 2025 at 9:42 PM
Climate change is costing more in terms of lives. "Pollution from wildfire smoke is increasing in the United States. Climate change is projected to exacerbate the problem, leading to 70,000 premature deaths each year by 2050."
www.nature.com/articles/d41...
Wildfire smoke and its harmful effects will worsen with climate change
Excess deaths from wildfire-smoke-derived fine particulate matter could reach 70,000 a year in the United States by 2050.
www.nature.com
November 7, 2025 at 9:37 PM
Worth a read: "Mike [a leading expert on climate science] describes how his thinking about climate change has evolved—from initial doubt to genuine concern."
revkin.substack.com/p/warming-wo...
Warming Worries of a Once-Doubtful Climate Scientist
Mike Wallace says reality is bad enough. Catastrophe-versus-hoax framing obscures the momentous dangers from unabated greenhouse-gas heating.
revkin.substack.com
October 19, 2025 at 7:07 PM
The Earth has reached its first planetary climate tipping point - a global coral die-off due to rising ocean temperatures. Much marine life depends on functioning coral reefs, so this is scary news for global marine ecosystems and all who depend on them. grist.org/oceans/coral...
Corals are disappearing, pushing Earth to its first major ‘tipping point’
A new report says Earth has reached a dire milestone with the widespread death of warm-water coral reefs. It's not too late to save what remains.
grist.org
October 14, 2025 at 7:30 AM
Wildfire risks will keep rising until climate change is stopped. “It is unambiguous and it is clear climate change is playing a role. These aren’t just bigger fires, they’re fires occurring under increasingly extreme weather conditions that make them unstoppable.” www.theguardian.com/world/2025/o...
Wildfires are getting deadlier and costing more. Experts warn they’re becoming unstoppable
Of 200 fires in the past 44 years, half of the fires that cost US$1bn or more were in the last decade
www.theguardian.com
October 3, 2025 at 8:43 PM
Excellent EV update. “The stakes could not be higher. The decisions made today will determine whether the US reasserts & secures its position as the world’s leading economic & technological power or continues to cede ground in industries critical to its future”
www.newsweek.com/chinas-ev-su...
China’s EV supremacy raises national security concerns for the US
China is in the driver’s seat when it comes to EV technology—which poses huge defense implications for the U.S.
www.newsweek.com
October 2, 2025 at 4:48 PM
Geothermal technology innovation is booming and with good reason - here's another exciting breakthrough.
www.canarymedia.com/articles/geo...
XGS Energy says its advanced geothermal tech is ready to scale up
The startup successfully operated a geothermal system for over 3,000 hours. The results should help it finance its first commercial deal: a 150-MW plant…
www.canarymedia.com
September 30, 2025 at 5:09 PM
The US is only hurting itself economically…”On Wednesday in New York, countries lined up to say they would accelerate their efforts to cut greenhouse-gas emissions. In staying away, the U.S. was all but alone.” www.nytimes.com/2025/09/24/c...
At Global Climate Summit This Week, U.S. Isolation Was on Full Display
www.nytimes.com
September 25, 2025 at 12:20 AM