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.
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 🧪🌎
That's because it DOESN'T GO AWAY after emission.
And the temperature doesn't immediately jump - no, we get to wait YEARS to DECADES until we start to experience the results of what we are putting into the atmosphere TODAY.
#FAFO - or should it be FA, your grandkids FO.
And the temperature doesn't immediately jump - no, we get to wait YEARS to DECADES until we start to experience the results of what we are putting into the atmosphere TODAY.
#FAFO - or should it be FA, your grandkids FO.
Here's a figure from IPCC AR6 Summary for Policymakers showing the linear relationship between fucking around and finding out.
Every tonne of CO₂ we add to the atmosphere makes things worse for us and all other living things.
Every tonne of CO₂ we add to the atmosphere makes things worse for us and all other living things.
May 16, 2025 at 6:31 PM
That's because it DOESN'T GO AWAY after emission.
And the temperature doesn't immediately jump - no, we get to wait YEARS to DECADES until we start to experience the results of what we are putting into the atmosphere TODAY.
#FAFO - or should it be FA, your grandkids FO.
And the temperature doesn't immediately jump - no, we get to wait YEARS to DECADES until we start to experience the results of what we are putting into the atmosphere TODAY.
#FAFO - or should it be FA, your grandkids FO.
Scientists and staff are affected by these stupid cuts.
Too many people will be harmed as a direct result of these stupid cuts, this year and decades to come.
Future scientific research is set back of these stupid cuts.
The indirect impacts of these stupid cuts are global and multi-decadal.
Too many people will be harmed as a direct result of these stupid cuts, this year and decades to come.
Future scientific research is set back of these stupid cuts.
The indirect impacts of these stupid cuts are global and multi-decadal.
Heading into hurricane season, the Houston NWS office is 44% understaffed (11 vacancies for a staff of 25), with no permanent management staff: meteorologist-in-charge, warning coordination meteorologist, science and operations officer, and electronics system analyst. www.weather.gov/hgx/office_s...
May 16, 2025 at 6:27 PM
Scientists and staff are affected by these stupid cuts.
Too many people will be harmed as a direct result of these stupid cuts, this year and decades to come.
Future scientific research is set back of these stupid cuts.
The indirect impacts of these stupid cuts are global and multi-decadal.
Too many people will be harmed as a direct result of these stupid cuts, this year and decades to come.
Future scientific research is set back of these stupid cuts.
The indirect impacts of these stupid cuts are global and multi-decadal.
The data show it: global warming is real and faster than background interglacial rates.
This is a graph of every April's record high averaged over all land areas since 1850. Thank you, @zacklabe.com for posting.
This is a graph of every April's record high averaged over all land areas since 1850. Thank you, @zacklabe.com for posting.
Closer look at the recent record high global mean temperature over land areas (where we live) during the month of April... A clear climate change signal that impacts us all.
Data provided by www.ncei.noaa.gov/products/lan...
Data provided by www.ncei.noaa.gov/products/lan...
May 16, 2025 at 6:22 PM
The data show it: global warming is real and faster than background interglacial rates.
This is a graph of every April's record high averaged over all land areas since 1850. Thank you, @zacklabe.com for posting.
This is a graph of every April's record high averaged over all land areas since 1850. Thank you, @zacklabe.com for posting.
Passing this along to keep up the fight against misinformation. Here are some ACTUAL data and results.
A single dose cuts the chances of measles by about 95% — a second dose reduces the risk further.
How effective and safe are measles vaccines?
In her new article, my colleague @scientificdiscovery.dev summarized the findings of a Cochrane meta-analysis.
ourworldindata.org/measles-vacc...
How effective and safe are measles vaccines?
In her new article, my colleague @scientificdiscovery.dev summarized the findings of a Cochrane meta-analysis.
ourworldindata.org/measles-vacc...
May 16, 2025 at 6:20 PM
Passing this along to keep up the fight against misinformation. Here are some ACTUAL data and results.
Is it not sad that a year ago, climate change posts were about science, data, research, warnings, and solutions...
we communicated, collaborated, consoled, and supported...
but now every third post is about tRump and MAGATs devaluing, devastating, and destroying?
#ClimateChange 1/2
we communicated, collaborated, consoled, and supported...
but now every third post is about tRump and MAGATs devaluing, devastating, and destroying?
#ClimateChange 1/2
May 16, 2025 at 6:18 PM
Is it not sad that a year ago, climate change posts were about science, data, research, warnings, and solutions...
we communicated, collaborated, consoled, and supported...
but now every third post is about tRump and MAGATs devaluing, devastating, and destroying?
#ClimateChange 1/2
we communicated, collaborated, consoled, and supported...
but now every third post is about tRump and MAGATs devaluing, devastating, and destroying?
#ClimateChange 1/2
It's #FieldworkFriday !
Fieldwork at Brady's Beach near Bamfield Marine Lab, west side of Vancouver Island, Canada. You can see the white rope at the base of the photo, in the process of being set up to record a transect of intertidal organisms attached to the rock.
Fieldwork at Brady's Beach near Bamfield Marine Lab, west side of Vancouver Island, Canada. You can see the white rope at the base of the photo, in the process of being set up to record a transect of intertidal organisms attached to the rock.
May 16, 2025 at 6:06 PM
It's #FieldworkFriday !
Fieldwork at Brady's Beach near Bamfield Marine Lab, west side of Vancouver Island, Canada. You can see the white rope at the base of the photo, in the process of being set up to record a transect of intertidal organisms attached to the rock.
Fieldwork at Brady's Beach near Bamfield Marine Lab, west side of Vancouver Island, Canada. You can see the white rope at the base of the photo, in the process of being set up to record a transect of intertidal organisms attached to the rock.
It's #FossilFriday !
Devonian Desquamatia sp. brachiopod from the Givetian of Iowa, USA encrusted by Aulopora sp. coral and unidentified bryozoans.
Devonian Desquamatia sp. brachiopod from the Givetian of Iowa, USA encrusted by Aulopora sp. coral and unidentified bryozoans.
May 16, 2025 at 5:54 PM
It's #FossilFriday !
Devonian Desquamatia sp. brachiopod from the Givetian of Iowa, USA encrusted by Aulopora sp. coral and unidentified bryozoans.
Devonian Desquamatia sp. brachiopod from the Givetian of Iowa, USA encrusted by Aulopora sp. coral and unidentified bryozoans.
May 2, 2025 at 4:31 PM
Add: the mass extinction of species, including key species, which could lead to extinction of the human species.
No amount of survivalist training will make up for lack of resources. No billions of dollars can rewild a key species if it has no habitat. We can adapt, but we have our limits.
🌎🧪
No amount of survivalist training will make up for lack of resources. No billions of dollars can rewild a key species if it has no habitat. We can adapt, but we have our limits.
🌎🧪
Most people think that the ClimateCrisis is about the world getting hotter. Here’s what it’s really about:
Global Famine
Never-ending Economic Depression
Mass Death from heat, natural disasters
Mass Death from global war
Global Famine
Never-ending Economic Depression
Mass Death from heat, natural disasters
Mass Death from global war
March 15, 2025 at 5:52 PM
Add: the mass extinction of species, including key species, which could lead to extinction of the human species.
No amount of survivalist training will make up for lack of resources. No billions of dollars can rewild a key species if it has no habitat. We can adapt, but we have our limits.
🌎🧪
No amount of survivalist training will make up for lack of resources. No billions of dollars can rewild a key species if it has no habitat. We can adapt, but we have our limits.
🌎🧪
Lag times apply.
What we fix today won't be felt for a long time - decades from now. Or more.
What we delay to fix later will add to the already overburdened system. Lag time to recovery will be even longer.
Species can't wait. We can't wait.
#ClimateChange 🌎🧪
What we fix today won't be felt for a long time - decades from now. Or more.
What we delay to fix later will add to the already overburdened system. Lag time to recovery will be even longer.
Species can't wait. We can't wait.
#ClimateChange 🌎🧪
3. The world has failed to stop climate change, with temperatures now above 1.5C of warming. Is it time for a plan B?
The case for climate adaptation:
www.thetimes.com/uk/environme...
The case for climate adaptation:
www.thetimes.com/uk/environme...
We’ve failed to stop climate change — this is what we need to do next
While we can still limit warming by cutting emissions, we now face having to adapt to more extreme weather
www.thetimes.com
March 15, 2025 at 5:46 PM
Lag times apply.
What we fix today won't be felt for a long time - decades from now. Or more.
What we delay to fix later will add to the already overburdened system. Lag time to recovery will be even longer.
Species can't wait. We can't wait.
#ClimateChange 🌎🧪
What we fix today won't be felt for a long time - decades from now. Or more.
What we delay to fix later will add to the already overburdened system. Lag time to recovery will be even longer.
Species can't wait. We can't wait.
#ClimateChange 🌎🧪
When the rate of adaptation << the rate of climate change, evolution << extinction and Life goes through a mass extinction.
From human perspectives, climate change takes generations = slow.
From species' perspectives, climate change >> their ability to adapt; change is too fast.
#ClimateChange 🧪🌎
From human perspectives, climate change takes generations = slow.
From species' perspectives, climate change >> their ability to adapt; change is too fast.
#ClimateChange 🧪🌎
I'm a researcher primarily in adaptation. We are not even adapted to where the climate is today.
If you think you can seawall your way through a 4°C planet, you are straight up dreaming.
Mitigation AND adaptation, or you end up with way more of option 3 for dealing with climate change: suffering.
If you think you can seawall your way through a 4°C planet, you are straight up dreaming.
Mitigation AND adaptation, or you end up with way more of option 3 for dealing with climate change: suffering.
I’m am adaptation scientist and here’s what I had to say about this—many years ago already.
March 15, 2025 at 5:41 PM
When the rate of adaptation << the rate of climate change, evolution << extinction and Life goes through a mass extinction.
From human perspectives, climate change takes generations = slow.
From species' perspectives, climate change >> their ability to adapt; change is too fast.
#ClimateChange 🧪🌎
From human perspectives, climate change takes generations = slow.
From species' perspectives, climate change >> their ability to adapt; change is too fast.
#ClimateChange 🧪🌎
Scaled-up, this is true of past mass extinctions, too: large refugia had a better chance of hosting higher biodiversity and helping species survive. Thus, larger protected areas will be better for helping species survive the oncoming 6th extinction than fragmented ones.
🧪🌎 #Extinction #Biodiversity
🧪🌎 #Extinction #Biodiversity
“Large, undisturbed forests are better for harboring biodiversity than fragmented landscapes, according to University of Michigan research“. 🌰🌍
phys.org/news/2025-03...
phys.org/news/2025-03...
Want to preserve biodiversity? Go big, researchers say
Large, undisturbed forests are better for harboring biodiversity than fragmented landscapes, according to University of Michigan research. Ecologists agree that habitat loss and the fragmentation of f...
phys.org
March 13, 2025 at 7:43 PM
Scaled-up, this is true of past mass extinctions, too: large refugia had a better chance of hosting higher biodiversity and helping species survive. Thus, larger protected areas will be better for helping species survive the oncoming 6th extinction than fragmented ones.
🧪🌎 #Extinction #Biodiversity
🧪🌎 #Extinction #Biodiversity
O. M. G.
Ignoring climate change won't make it go away.
Refusing to measure carbon dioxide won't make it go away.
Pretending it has no cost to economies or lives won't make it go away.
It's real. It's us. Experts agree. It's mostly bad. It's not too late to fix it.
www.reuters.com/sustainabili...
Refusing to measure carbon dioxide won't make it go away.
Pretending it has no cost to economies or lives won't make it go away.
It's real. It's us. Experts agree. It's mostly bad. It's not too late to fix it.
www.reuters.com/sustainabili...
Trump cuts target world-leading greenhouse gas observatory in Hawaii
The Trump administration is considering cancelling the lease of the support office for a renowned Hawaiian climate research station, sources said, raising fears for the future of key work tracking the impact of carbon emissions on global warming.
www.reuters.com
March 11, 2025 at 10:25 PM
O. M. G.
My research suggests that random extinction at current levels of biodiversity loss will lead to mass extinction levels in about 950 years (we would be long gone before then). This does not take into account extinction cascades or other acceleration, like in this post.
#ClimateChange #Extinction 🧪🌎
#ClimateChange #Extinction 🧪🌎
March 11, 2025 at 8:40 PM
My research suggests that random extinction at current levels of biodiversity loss will lead to mass extinction levels in about 950 years (we would be long gone before then). This does not take into account extinction cascades or other acceleration, like in this post.
#ClimateChange #Extinction 🧪🌎
#ClimateChange #Extinction 🧪🌎
We know climate grief, but now we face a new grief: science loss.
We not only feel the grief from our research, but also the loss of colleagues who stood with us.
We grieve for the increase in future deterioration of our Earth.
We grieve over the work we will have to do.
#ClimateChange 🧪🌎
We not only feel the grief from our research, but also the loss of colleagues who stood with us.
We grieve for the increase in future deterioration of our Earth.
We grieve over the work we will have to do.
#ClimateChange 🧪🌎
March 11, 2025 at 8:22 PM
We know climate grief, but now we face a new grief: science loss.
We not only feel the grief from our research, but also the loss of colleagues who stood with us.
We grieve for the increase in future deterioration of our Earth.
We grieve over the work we will have to do.
#ClimateChange 🧪🌎
We not only feel the grief from our research, but also the loss of colleagues who stood with us.
We grieve for the increase in future deterioration of our Earth.
We grieve over the work we will have to do.
#ClimateChange 🧪🌎
I grieve for those who lost their careers and purpose, across science organizations and academia.
I think of Sara, who loves Mars so much that she had a spaceship-shaped tent.
I think of Carrie, whose students may not be able to continue.
I think of our future.
🧪🌎
www.nature.com/articles/d41...
I think of Sara, who loves Mars so much that she had a spaceship-shaped tent.
I think of Carrie, whose students may not be able to continue.
I think of our future.
🧪🌎
www.nature.com/articles/d41...
NASA begins mass firings of scientists ahead of Trump team’s deadline
Top advisers in the Office of the Chief Scientist are among the first to go amid downsizing effort.
www.nature.com
March 11, 2025 at 8:08 PM
I grieve for those who lost their careers and purpose, across science organizations and academia.
I think of Sara, who loves Mars so much that she had a spaceship-shaped tent.
I think of Carrie, whose students may not be able to continue.
I think of our future.
🧪🌎
www.nature.com/articles/d41...
I think of Sara, who loves Mars so much that she had a spaceship-shaped tent.
I think of Carrie, whose students may not be able to continue.
I think of our future.
🧪🌎
www.nature.com/articles/d41...
When the loss of artic sea ice is reinterpreted as a boon to shipping and profit...
When overharvesting of resources increases the bottom line...
When infinite growth ignores the limits of a global system...
When disasters are downplayed in favor of "progress"...
#ClimateChange 🧪🌎
When overharvesting of resources increases the bottom line...
When infinite growth ignores the limits of a global system...
When disasters are downplayed in favor of "progress"...
#ClimateChange 🧪🌎
This goes beyond greenwashing and is simply anti-science. Communities are experiencing the negative impacts of climate change already, in addition to our responsibility to future generations for whom the picture gets far, far worse absent aggressive mitigation + adaptation efforts today.
The outlines of a White House plan to produce a government science report that highlights the "benefits" of climate change is coming together. The intent is to expand presidential power, target regulations and fight litigation filed against fossil fuel companies. www.eenews.net/articles/tru...
March 10, 2025 at 7:44 PM
When the loss of artic sea ice is reinterpreted as a boon to shipping and profit...
When overharvesting of resources increases the bottom line...
When infinite growth ignores the limits of a global system...
When disasters are downplayed in favor of "progress"...
#ClimateChange 🧪🌎
When overharvesting of resources increases the bottom line...
When infinite growth ignores the limits of a global system...
When disasters are downplayed in favor of "progress"...
#ClimateChange 🧪🌎
New term for today: greenhushing.
Prioritizing current political favor and profit ahead of humanity's and Earth's future.
#ClimateChange 🌎🧪
Prioritizing current political favor and profit ahead of humanity's and Earth's future.
#ClimateChange 🌎🧪
Greenhushing: when companies that previously touted their climate achievements start downplaying them, even as those efforts continue. Effectively the opposite of greenwashing. By @cocojournalist.bsky.social and @oliviarudgard.bsky.social for Bloomberg…
Trump’s Return Prompts Companies to Stifle Climate Talk With ‘Greenhushing’
Businesses that used to tout carbon-cutting are switching their message: “This isn’t a good time to put a red flag in front of the bull.”
www.bloomberg.com
March 9, 2025 at 1:18 AM
New term for today: greenhushing.
Prioritizing current political favor and profit ahead of humanity's and Earth's future.
#ClimateChange 🌎🧪
Prioritizing current political favor and profit ahead of humanity's and Earth's future.
#ClimateChange 🌎🧪