Chris Colose
@ccolose.bsky.social
Climate scientist. Interested in past, present, and future Earth and planetary climates.
Order of magnitudes matter. For example this is what happens when you zap stuffing for 20:00 instead of 2:00. #happythanksgiving
November 27, 2025 at 10:12 PM
Order of magnitudes matter. For example this is what happens when you zap stuffing for 20:00 instead of 2:00. #happythanksgiving
When you have an interesting planet to look at in the exoplanet catalog but the catalog reversed the mass and radius information of the host star (relative to the original publication) and it’s no longer interesting…
November 21, 2025 at 12:37 AM
When you have an interesting planet to look at in the exoplanet catalog but the catalog reversed the mass and radius information of the host star (relative to the original publication) and it’s no longer interesting…
Somewhere floating in space is Russell’s syringe, waiting one day millennia from now to jab Starman in Elon’s orbiting car.
November 20, 2025 at 10:42 PM
Somewhere floating in space is Russell’s syringe, waiting one day millennia from now to jab Starman in Elon’s orbiting car.
Not even a year in and we’re on the “kill my political opponents” stage.
November 20, 2025 at 7:16 PM
Not even a year in and we’re on the “kill my political opponents” stage.
How to start papers:
November 19, 2025 at 5:15 AM
How to start papers:
Took a while to rule out Colonel Mustard
November 6, 2025 at 8:26 PM
Took a while to rule out Colonel Mustard
Reminder that we still need scientists despite AI tools, mad almost-trillionaires, and other ideological wars.
November 6, 2025 at 8:18 PM
Reminder that we still need scientists despite AI tools, mad almost-trillionaires, and other ideological wars.
How about the winner gets 120% of previous year federal funds?
www.ibtimes.co.uk/3i-atlas-ala...
www.ibtimes.co.uk/3i-atlas-ala...
October 29, 2025 at 8:53 PM
How about the winner gets 120% of previous year federal funds?
www.ibtimes.co.uk/3i-atlas-ala...
www.ibtimes.co.uk/3i-atlas-ala...
Will they ever get someone new? I’m a few minutes in and it’s the usual nonsense, but surprised that Lindzen doesn’t even know that the no-feedback climate sensitivity is over a degree, not 0.5 degrees.
October 21, 2025 at 11:02 PM
Will they ever get someone new? I’m a few minutes in and it’s the usual nonsense, but surprised that Lindzen doesn’t even know that the no-feedback climate sensitivity is over a degree, not 0.5 degrees.
Just went to look something up. My mistake.
October 10, 2025 at 6:11 PM
Just went to look something up. My mistake.
The acting administrator of NASA in 2025
October 7, 2025 at 11:50 AM
The acting administrator of NASA in 2025
The fascism and Project 2025 game is now wide out in the open as was transparent to anyone playing attention.
October 2, 2025 at 4:27 PM
The fascism and Project 2025 game is now wide out in the open as was transparent to anyone playing attention.
With Trump's "enemy within" language, they are about a month away from just being able to do whatever they want and skip the whole DEI/foreign invaders/whatever talking points.
October 1, 2025 at 4:30 PM
With Trump's "enemy within" language, they are about a month away from just being able to do whatever they want and skip the whole DEI/foreign invaders/whatever talking points.
So I guess in this regime (theres an “f” word they are telling us we aren’t allowed to use) global greening is no longer mentionable?
subscriber.politicopro.com/article/2025...
subscriber.politicopro.com/article/2025...
September 28, 2025 at 8:25 PM
So I guess in this regime (theres an “f” word they are telling us we aren’t allowed to use) global greening is no longer mentionable?
subscriber.politicopro.com/article/2025...
subscriber.politicopro.com/article/2025...
4/ Earth’s atmosphere is too opaque to efficiently transmit energy by infrared through the column by radiation, and the temperature structure needed to do so is dynamically unstable. So convection creates a troposphere that settles on some adiabat.
September 23, 2025 at 11:06 PM
4/ Earth’s atmosphere is too opaque to efficiently transmit energy by infrared through the column by radiation, and the temperature structure needed to do so is dynamically unstable. So convection creates a troposphere that settles on some adiabat.
You're telling me this won't offset perturbing the global carbon cycle and climate?
September 9, 2025 at 6:04 PM
You're telling me this won't offset perturbing the global carbon cycle and climate?
When I first looked at the DOE report, the discussion of ocean acidification was hopelessly confused bc they don't understand the carbonate chemistry adjustment timescales and why a pulse of CO2 is not the same as a gradual increase. I may have been responsible for a bit of snark here too...
September 2, 2025 at 5:01 PM
When I first looked at the DOE report, the discussion of ocean acidification was hopelessly confused bc they don't understand the carbonate chemistry adjustment timescales and why a pulse of CO2 is not the same as a gradual increase. I may have been responsible for a bit of snark here too...
Interesting to see an Antarctic amplified world, and as expected very big tropical precip signals
September 1, 2025 at 2:23 AM
Interesting to see an Antarctic amplified world, and as expected very big tropical precip signals
There is so much to talk about with Trump’s gold standard nonsense, but this section reads like a passionate undergraduate wrote it, and is off base on RCP8.5. Could they not get anyone familiar with the topic?
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
August 25, 2025 at 2:01 AM
There is so much to talk about with Trump’s gold standard nonsense, but this section reads like a passionate undergraduate wrote it, and is off base on RCP8.5. Could they not get anyone familiar with the topic?
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
One note is this is all at the surface. The same "Weak Temperature Gradient" constraints (from gravity waves) that smooth free atmospheric gradients in Earth's tropics apply for slowly rotating synchronous planets. Here's a different coordinate system but you can tell where the substellar heating is
August 23, 2025 at 10:39 PM
One note is this is all at the surface. The same "Weak Temperature Gradient" constraints (from gravity waves) that smooth free atmospheric gradients in Earth's tropics apply for slowly rotating synchronous planets. Here's a different coordinate system but you can tell where the substellar heating is
That calculation was done w the GISS ROCKE-3D model for an 11.2 d orbital period with different atmospheric types
www.liebertpub.com/doi/abs/10.1...
Even for intermediate mass stars, the tsurf field departs from the ultra slow rotation cases (I made this for iopscience.iop.org/article/10.3...)
www.liebertpub.com/doi/abs/10.1...
Even for intermediate mass stars, the tsurf field departs from the ultra slow rotation cases (I made this for iopscience.iop.org/article/10.3...)
August 23, 2025 at 10:21 PM
That calculation was done w the GISS ROCKE-3D model for an 11.2 d orbital period with different atmospheric types
www.liebertpub.com/doi/abs/10.1...
Even for intermediate mass stars, the tsurf field departs from the ultra slow rotation cases (I made this for iopscience.iop.org/article/10.3...)
www.liebertpub.com/doi/abs/10.1...
Even for intermediate mass stars, the tsurf field departs from the ultra slow rotation cases (I made this for iopscience.iop.org/article/10.3...)
Those results are without dynamic oceans (like "Thermo" below). When you have a circulating ocean, you can change the game and completely affect the flow in ways that resemble the Gill solution to stationary heating in tropical meteorology, in this case extending warm temperatures to the nightside.
August 23, 2025 at 10:16 PM
Those results are without dynamic oceans (like "Thermo" below). When you have a circulating ocean, you can change the game and completely affect the flow in ways that resemble the Gill solution to stationary heating in tropical meteorology, in this case extending warm temperatures to the nightside.
For example, Haqq-Misra et al. (among others like Noda et al.) show this results in more interesting zonal structure when you get down to periods < 20-30 Earth days, and eventually <5 days, resulting in less organized cloud development at the substellar point iopscience.iop.org/article/10.3...
August 23, 2025 at 10:10 PM
For example, Haqq-Misra et al. (among others like Noda et al.) show this results in more interesting zonal structure when you get down to periods < 20-30 Earth days, and eventually <5 days, resulting in less organized cloud development at the substellar point iopscience.iop.org/article/10.3...
Nice thread. As a tangent, one of the remarkable aspects of tidally locked (more precisely, "synchronously rotating") planets is actually how non eyeball-like the climates can be, despite the circular symmetry of the instellation at the substellar point.
August 23, 2025 at 9:43 PM
Nice thread. As a tangent, one of the remarkable aspects of tidally locked (more precisely, "synchronously rotating") planets is actually how non eyeball-like the climates can be, despite the circular symmetry of the instellation at the substellar point.