Dr. C. L. Schneider
@stardusttostarfish.bsky.social
Conservation paleobiologist, marine ecologist, geologist
Research: extinction survivorship, refugia
Dancer, cat rescuer, author, armchair linguist. Sermon on the Mount. Permanent optimist.
Make an impact. Be excellent to others. Use the fancy dishes.
"Insects are undergoing concerning declines across the world, and...essential ecosystem services will increasingly be at risk”
"While invasive species are considered a nuisance, the study suggests they are still a manageable threat"
We still have time to fix it.
#ClimateChange #Conservation 🧪🌎 🦤
"While invasive species are considered a nuisance, the study suggests they are still a manageable threat"
We still have time to fix it.
#ClimateChange #Conservation 🧪🌎 🦤
January 27, 2026 at 6:54 PM
"Insects are undergoing concerning declines across the world, and...essential ecosystem services will increasingly be at risk”
"While invasive species are considered a nuisance, the study suggests they are still a manageable threat"
We still have time to fix it.
#ClimateChange #Conservation 🧪🌎 🦤
"While invasive species are considered a nuisance, the study suggests they are still a manageable threat"
We still have time to fix it.
#ClimateChange #Conservation 🧪🌎 🦤
"Geologists have now installed a pair of ultrasensitive seismometers 2.5 kilometers beneath the South Pole...the instruments should be able to detect every earthquake over magnitude five, as well as the slight tugging on Earth from the Moon and other planets."
🧪⚒️ #Geology
🧪⚒️ #Geology
January 27, 2026 at 6:48 PM
"Geologists have now installed a pair of ultrasensitive seismometers 2.5 kilometers beneath the South Pole...the instruments should be able to detect every earthquake over magnitude five, as well as the slight tugging on Earth from the Moon and other planets."
🧪⚒️ #Geology
🧪⚒️ #Geology
Reposted by Dr. C. L. Schneider
Post-COP30 Modelling Shows World Is Far Off Track for Climate Goals
->The Energy Mix | More on "Climate goals still far off" at BigEarthData.ai | #climate goal
->The Energy Mix | More on "Climate goals still far off" at BigEarthData.ai | #climate goal
Post-COP30 Modelling Shows World Is Far Off Track for Climate Goals
This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy and the environment. Sign up for their newsletter here. After yet another international climate summit ended last fall without binding commitments to phase...
www.theenergymix.com
January 27, 2026 at 6:24 PM
“ecosystem degradation is occurring across all regions. Every critical ecosystem is on a pathway to collapse (irreversible loss of function beyond repair).”
This Opinion piece may be about the U.K., but it's relevant for every place on Earth.
#ClimateChange 🧪🌎
www.theguardian.com/commentisfre...
This Opinion piece may be about the U.K., but it's relevant for every place on Earth.
#ClimateChange 🧪🌎
www.theguardian.com/commentisfre...
The UK government didn't want you to see this report on ecosystem collapse. I'm not surprised | George Monbiot
It took an FOI request to bring this national security assessment to light. For ‘doomsayers’ like us, it is the ultimate vindication, says Guardian columnist George Monbiot
www.theguardian.com
January 27, 2026 at 6:46 PM
“ecosystem degradation is occurring across all regions. Every critical ecosystem is on a pathway to collapse (irreversible loss of function beyond repair).”
This Opinion piece may be about the U.K., but it's relevant for every place on Earth.
#ClimateChange 🧪🌎
www.theguardian.com/commentisfre...
This Opinion piece may be about the U.K., but it's relevant for every place on Earth.
#ClimateChange 🧪🌎
www.theguardian.com/commentisfre...
"[A new British intelligence report] echoes warnings some of us have made for years, only to be dismissed as nutters, doomsayers and extremists."
"Every critical ecosystem is on a pathway to collapse...”
You won't find more crucial reading than this.
"Every critical ecosystem is on a pathway to collapse...”
You won't find more crucial reading than this.
This week's column is about something that's arguably more important than anything in the news, crucial as some of the other issues are.
www.theguardian.com/commentisfre...
www.theguardian.com/commentisfre...
January 27, 2026 at 6:44 PM
“When you know that the odds are against you … either you can give up and cause a whole lot of stress on yourself, or you can take what you have and make the best of it.”
-Gladys Mae West, 2020 🧪🌎 #ClimateChange
From Nature and Nature Briefing
www.nature.com/articles/d41...
-Gladys Mae West, 2020 🧪🌎 #ClimateChange
From Nature and Nature Briefing
www.nature.com/articles/d41...
Gladys Mae West obituary: mathematician who pioneered GPS technology
She made key contributions to US cold-war science despite facing huge barriers as a Black woman.
www.nature.com
January 26, 2026 at 9:12 PM
“When you know that the odds are against you … either you can give up and cause a whole lot of stress on yourself, or you can take what you have and make the best of it.”
-Gladys Mae West, 2020 🧪🌎 #ClimateChange
From Nature and Nature Briefing
www.nature.com/articles/d41...
-Gladys Mae West, 2020 🧪🌎 #ClimateChange
From Nature and Nature Briefing
www.nature.com/articles/d41...
The virtual angels and demons of AI: it helps and it hinders. Katharine Hayhoe has given us a good summary of AI plusses and minuses, when it comes to climate change.
This week’s Talking Climate is a mega-edition, a deep dive into the hot and contentious topic of AI and climate.
If you’ve been wondering whether AI is a climate villain, a climate tool, or both, this edition’s for you.
If you’ve been wondering whether AI is a climate villain, a climate tool, or both, this edition’s for you.
When AI hurts the climate—and when it helps | Talking Climate with Katharine Hayhoe
Get more from Talking Climate with Katharine Hayhoe on Patreon
www.patreon.com
January 25, 2026 at 11:39 PM
The virtual angels and demons of AI: it helps and it hinders. Katharine Hayhoe has given us a good summary of AI plusses and minuses, when it comes to climate change.
How hot can the Earth get?
Mesozoic (time of the dinosaurs): sometimes up to 8 C warmer
Permo-Triassic extinction: up to 10 C warmer
But:
CO2 levels that created those hothouse times sometimes exceeded 2000 ppmv. Humans start feeling effects at about 1000 ppmv.
#ClimateChange🧪🌎#GlobalWarming
Mesozoic (time of the dinosaurs): sometimes up to 8 C warmer
Permo-Triassic extinction: up to 10 C warmer
But:
CO2 levels that created those hothouse times sometimes exceeded 2000 ppmv. Humans start feeling effects at about 1000 ppmv.
#ClimateChange🧪🌎#GlobalWarming
January 25, 2026 at 11:32 PM
How hot can the Earth get?
Mesozoic (time of the dinosaurs): sometimes up to 8 C warmer
Permo-Triassic extinction: up to 10 C warmer
But:
CO2 levels that created those hothouse times sometimes exceeded 2000 ppmv. Humans start feeling effects at about 1000 ppmv.
#ClimateChange🧪🌎#GlobalWarming
Mesozoic (time of the dinosaurs): sometimes up to 8 C warmer
Permo-Triassic extinction: up to 10 C warmer
But:
CO2 levels that created those hothouse times sometimes exceeded 2000 ppmv. Humans start feeling effects at about 1000 ppmv.
#ClimateChange🧪🌎#GlobalWarming
So many species have been reduced in numbers and in geographic extent that they are in their final refuges. These refuges are all their only protection from extinction. Climate change will erase many refuges. We can still change this.
#ClimateChange #Conservation 🌎🧪
www.pbs.org/newshour/sci...
#ClimateChange #Conservation 🌎🧪
www.pbs.org/newshour/sci...
The last refuge for a tiny hummingbird facing extinction is an ancient forest in Ecuador
Deep in the Ecuadorian Andes, the Yanacocha Reserve is the last refuge for a tiny hummingbird teetering on the edge of extinction.
www.pbs.org
January 25, 2026 at 11:23 PM
So many species have been reduced in numbers and in geographic extent that they are in their final refuges. These refuges are all their only protection from extinction. Climate change will erase many refuges. We can still change this.
#ClimateChange #Conservation 🌎🧪
www.pbs.org/newshour/sci...
#ClimateChange #Conservation 🌎🧪
www.pbs.org/newshour/sci...
A partial skeleton dating back more than two million years is the most complete yet of Homo habilis, one of the earliest known species in our genus
This is the most complete skeleton yet of our ancestor Homo habilis
A partial skeleton dating back more than two million years is the most complete yet of Homo habilis, one of the earliest known species in our genus
www.scientificamerican.com
January 23, 2026 at 8:09 PM
Conservation paleobiology meeting at University College London, August 2027
What is Conservation Paleobiology? The fossil record is a natural laboratory for Earth's present and future environmental crises.
#SixthExtinction #ClimateChange 🧪🌎🦖⚒️
www.ucl.ac.uk/mathematical...
What is Conservation Paleobiology? The fossil record is a natural laboratory for Earth's present and future environmental crises.
#SixthExtinction #ClimateChange 🧪🌎🦖⚒️
www.ucl.ac.uk/mathematical...
Combined CPEG–CPS meetings
5th Crossing the Palaeontological–Ecological Gap (CPEG) meeting & 4th Conservation Paleobiology Symposium (CPS); August 2027
www.ucl.ac.uk
January 23, 2026 at 8:01 PM
Conservation paleobiology meeting at University College London, August 2027
What is Conservation Paleobiology? The fossil record is a natural laboratory for Earth's present and future environmental crises.
#SixthExtinction #ClimateChange 🧪🌎🦖⚒️
www.ucl.ac.uk/mathematical...
What is Conservation Paleobiology? The fossil record is a natural laboratory for Earth's present and future environmental crises.
#SixthExtinction #ClimateChange 🧪🌎🦖⚒️
www.ucl.ac.uk/mathematical...
Quaternary bison tooth in fluvial sand, Alberta, Canada.
#FossilFriday 🧪🦖⚒️
#FossilFriday 🧪🦖⚒️
January 23, 2026 at 7:58 PM
Quaternary bison tooth in fluvial sand, Alberta, Canada.
#FossilFriday 🧪🦖⚒️
#FossilFriday 🧪🦖⚒️
Reposted by Dr. C. L. Schneider
Report (fairly short read)
HM Government national security assessment: Global biodiversity loss, ecosystem collapse and national security.
assets.publishing.service.gov.uk/media/696e0e...
HM Government national security assessment: Global biodiversity loss, ecosystem collapse and national security.
assets.publishing.service.gov.uk/media/696e0e...
assets.publishing.service.gov.uk
January 22, 2026 at 8:44 PM
Report (fairly short read)
HM Government national security assessment: Global biodiversity loss, ecosystem collapse and national security.
assets.publishing.service.gov.uk/media/696e0e...
HM Government national security assessment: Global biodiversity loss, ecosystem collapse and national security.
assets.publishing.service.gov.uk/media/696e0e...
Reposted by Dr. C. L. Schneider
Interesting article by @maxinejoselow.bsky.social:
Trump’s E.P.A. Has Put a Value on Human Life: Zero Dollars
Gift link: www.nytimes.com/2026/01/21/c...
Trump’s E.P.A. Has Put a Value on Human Life: Zero Dollars
Gift link: www.nytimes.com/2026/01/21/c...
Trump’s E.P.A. Has Put a Value on Human Life: Zero Dollars
www.nytimes.com
January 22, 2026 at 10:06 PM
Interesting article by @maxinejoselow.bsky.social:
Trump’s E.P.A. Has Put a Value on Human Life: Zero Dollars
Gift link: www.nytimes.com/2026/01/21/c...
Trump’s E.P.A. Has Put a Value on Human Life: Zero Dollars
Gift link: www.nytimes.com/2026/01/21/c...
Reposted by Dr. C. L. Schneider
Frigid air and an impactful, disruptive winter storm are in the works for the weekend.
These kinds of events don’t happen despite a warming climate...they’re connected to it, especially when it comes to ice and snow totals.
A short 🧵to walk through the science together ⬇️
These kinds of events don’t happen despite a warming climate...they’re connected to it, especially when it comes to ice and snow totals.
A short 🧵to walk through the science together ⬇️
January 22, 2026 at 10:14 PM
Frigid air and an impactful, disruptive winter storm are in the works for the weekend.
These kinds of events don’t happen despite a warming climate...they’re connected to it, especially when it comes to ice and snow totals.
A short 🧵to walk through the science together ⬇️
These kinds of events don’t happen despite a warming climate...they’re connected to it, especially when it comes to ice and snow totals.
A short 🧵to walk through the science together ⬇️
From a paleobiologist's perspective, this is a short-term deterioration that will cause species extinctions and ecosystem instability and, if unchecked, in the long-term will lead to a far greater collapse.
We still have time to save the world if we choose to.
#ClimateChange #SixthExtinction 🧪🌎
We still have time to save the world if we choose to.
#ClimateChange #SixthExtinction 🧪🌎
January 22, 2026 at 11:00 PM
From a paleobiologist's perspective, this is a short-term deterioration that will cause species extinctions and ecosystem instability and, if unchecked, in the long-term will lead to a far greater collapse.
We still have time to save the world if we choose to.
#ClimateChange #SixthExtinction 🧪🌎
We still have time to save the world if we choose to.
#ClimateChange #SixthExtinction 🧪🌎
AI has an environmental cost AND a social cost. Excerpt, Katherine Hayhoe's newsletter:
"the “Colossus” datacenter that powers Elon Musk’s Grok chatbot built 33 gas turbines without EPA approval. This alone increased smog levels over poor Memphis neighbourhoods by 30-60%."
#ClimateChange #AI 🧪🌎
"the “Colossus” datacenter that powers Elon Musk’s Grok chatbot built 33 gas turbines without EPA approval. This alone increased smog levels over poor Memphis neighbourhoods by 30-60%."
#ClimateChange #AI 🧪🌎
January 22, 2026 at 10:53 PM
AI has an environmental cost AND a social cost. Excerpt, Katherine Hayhoe's newsletter:
"the “Colossus” datacenter that powers Elon Musk’s Grok chatbot built 33 gas turbines without EPA approval. This alone increased smog levels over poor Memphis neighbourhoods by 30-60%."
#ClimateChange #AI 🧪🌎
"the “Colossus” datacenter that powers Elon Musk’s Grok chatbot built 33 gas turbines without EPA approval. This alone increased smog levels over poor Memphis neighbourhoods by 30-60%."
#ClimateChange #AI 🧪🌎
From Katherin Hayoe's newsletter:
"...rather than increasing its (AI's) efficiency, companies are just building more. Not only is this driving a massive increase in electricity demand, but the energy the data centres are relying on is mostly fossil fuels. "
#climateChange #AI 🧪🌎
"...rather than increasing its (AI's) efficiency, companies are just building more. Not only is this driving a massive increase in electricity demand, but the energy the data centres are relying on is mostly fossil fuels. "
#climateChange #AI 🧪🌎
January 22, 2026 at 10:51 PM
From Katherin Hayoe's newsletter:
"...rather than increasing its (AI's) efficiency, companies are just building more. Not only is this driving a massive increase in electricity demand, but the energy the data centres are relying on is mostly fossil fuels. "
#climateChange #AI 🧪🌎
"...rather than increasing its (AI's) efficiency, companies are just building more. Not only is this driving a massive increase in electricity demand, but the energy the data centres are relying on is mostly fossil fuels. "
#climateChange #AI 🧪🌎
It's not just how high temperature or greenhouse gas emissions are rising, but how fast - our emissions and global warming exceed the rate of any time in the Earth's past.
Most species can't adapt fast enough and will go extinct, including those we rely on.
🌎🧪
#SixthExtinction #ClimateChange
Most species can't adapt fast enough and will go extinct, including those we rely on.
🌎🧪
#SixthExtinction #ClimateChange
December 19, 2025 at 6:29 PM
It's not just how high temperature or greenhouse gas emissions are rising, but how fast - our emissions and global warming exceed the rate of any time in the Earth's past.
Most species can't adapt fast enough and will go extinct, including those we rely on.
🌎🧪
#SixthExtinction #ClimateChange
Most species can't adapt fast enough and will go extinct, including those we rely on.
🌎🧪
#SixthExtinction #ClimateChange
Reposted by Dr. C. L. Schneider
"We have known since the calculations of Nobel prize-winning physical chemist Svante Arrhenius in the 1890s of the impact increasing CO2 would have on temperature," Hayhoe said, citing scientific literature from 1896.
YES - 1896. That's how long we've known.
factcheck.afp.com/doc.afp.com....
YES - 1896. That's how long we've known.
factcheck.afp.com/doc.afp.com....
December 17, 2025 at 4:47 PM
"We have known since the calculations of Nobel prize-winning physical chemist Svante Arrhenius in the 1890s of the impact increasing CO2 would have on temperature," Hayhoe said, citing scientific literature from 1896.
YES - 1896. That's how long we've known.
factcheck.afp.com/doc.afp.com....
YES - 1896. That's how long we've known.
factcheck.afp.com/doc.afp.com....
We're doing it, slowly but surely. Don't give up even when parts of the world give up. Let's each leave the world a little better place than when we came into it. Keep up the good fight, colleagues.
🌎🧪
#ClimateChange #SixthExtinction
🌎🧪
#ClimateChange #SixthExtinction
Science has named the seemingly unstoppable growth of renewable energy worldwide as the 2025 Breakthrough of the Year.
Learn more about this year's #BOTY and other big advances in science: https://scim.ag/493Tpgx
Learn more about this year's #BOTY and other big advances in science: https://scim.ag/493Tpgx
December 19, 2025 at 6:22 PM
We're doing it, slowly but surely. Don't give up even when parts of the world give up. Let's each leave the world a little better place than when we came into it. Keep up the good fight, colleagues.
🌎🧪
#ClimateChange #SixthExtinction
🌎🧪
#ClimateChange #SixthExtinction
#FossilFriday
Thamnopora sp. tabulate coral, cross-section, in core. Middle Devonian Keg River Formation, approximately 265 metres below surface of northeast Alberta, Canada.
Specimen is about 2 cm long.
Thamnopora sp. tabulate coral, cross-section, in core. Middle Devonian Keg River Formation, approximately 265 metres below surface of northeast Alberta, Canada.
Specimen is about 2 cm long.
December 19, 2025 at 6:16 PM
#FossilFriday
Thamnopora sp. tabulate coral, cross-section, in core. Middle Devonian Keg River Formation, approximately 265 metres below surface of northeast Alberta, Canada.
Specimen is about 2 cm long.
Thamnopora sp. tabulate coral, cross-section, in core. Middle Devonian Keg River Formation, approximately 265 metres below surface of northeast Alberta, Canada.
Specimen is about 2 cm long.
“I always tell people that if I ever feel like our funding is in doubt I’ll just come with big tanks of sea lamprey and release them in their offices in Congress or in Parliament.”
Ethan Baker, chair, Great Lakes Fishery Commission that works to suppress the population of invasive sea lampreys
🧪🌎
Ethan Baker, chair, Great Lakes Fishery Commission that works to suppress the population of invasive sea lampreys
🧪🌎
November 7, 2025 at 8:13 PM
“I always tell people that if I ever feel like our funding is in doubt I’ll just come with big tanks of sea lamprey and release them in their offices in Congress or in Parliament.”
Ethan Baker, chair, Great Lakes Fishery Commission that works to suppress the population of invasive sea lampreys
🧪🌎
Ethan Baker, chair, Great Lakes Fishery Commission that works to suppress the population of invasive sea lampreys
🧪🌎
#ClimateChange 🧪 🌎
This is a really beautiful tool for conveying impact. Print them out as posters and flyer your town with them! silencedsciencestories.com/the-scientists
May 16, 2025 at 6:39 PM
#ClimateChange 🧪 🌎
We (industry, governments) spend so much money on "quick fixes" that would allow us to keep emitting and polluting.
It's a slight-of-hand: any "fix" will bite us in the @$$ eventually. Stored carbon will leak back into the atmosphere. And now this:
#ClimateChange 🧪🌎
It's a slight-of-hand: any "fix" will bite us in the @$$ eventually. Stored carbon will leak back into the atmosphere. And now this:
#ClimateChange 🧪🌎
@altagliabue.bsky.social making a presentation at @ucl.ac.uk telling us that ocean iron fertilization won’t do jack for climate and will further harm fisheries.
Yet, it’s the marine CO₂ removal (mCDR) method that has sold the most credits so far. 🤷🏻♂️
Yet, it’s the marine CO₂ removal (mCDR) method that has sold the most credits so far. 🤷🏻♂️
May 16, 2025 at 6:36 PM
We (industry, governments) spend so much money on "quick fixes" that would allow us to keep emitting and polluting.
It's a slight-of-hand: any "fix" will bite us in the @$$ eventually. Stored carbon will leak back into the atmosphere. And now this:
#ClimateChange 🧪🌎
It's a slight-of-hand: any "fix" will bite us in the @$$ eventually. Stored carbon will leak back into the atmosphere. And now this:
#ClimateChange 🧪🌎