Colin Seftor
@cseftor.bsky.social
Mostly retired, worked as a NASA contractor during atmospheric research on ozone and aerosols at Goddard Space Flight Center. Still keep my hand in things one day per week.
Reposted by Colin Seftor
Be a hero @nytimes.com, hire the @capitalweather.bsky.social group.
February 4, 2026 at 3:35 PM
Be a hero @nytimes.com, hire the @capitalweather.bsky.social group.
Here's the Aerosol Index from the OMPS sensor onboard NOAA 20.
January 19, 2026 at 7:25 PM
Here's the Aerosol Index from the OMPS sensor onboard NOAA 20.
Reposted by Colin Seftor
The worst climate and weather news you’ll see today.
Update: A bid to safeguard the National Center for Atmospheric Research failed Thursday after the Senate passed a spending package without an amendment to save the center's funding. eos.org/research-and...
Trump Administration Plans to Break Up NCAR - Eos
The Trump administration is planning to dismantle the National Center for Atmospheric Research, one of the world’s leading climate and Earth science research laboratories, according to a statement fro...
eos.org
January 16, 2026 at 3:26 PM
The worst climate and weather news you’ll see today.
Reposted by Colin Seftor
Seeing the "last day at [federal agency]" posts today from amazingly talented people who took the Administration's 2025 buy-out is devastating.
Regardless of what the White House thinks, know that your expertise and your skills are so valuable and desperately needed in this country, my friends.
Regardless of what the White House thinks, know that your expertise and your skills are so valuable and desperately needed in this country, my friends.
January 1, 2026 at 5:36 PM
Seeing the "last day at [federal agency]" posts today from amazingly talented people who took the Administration's 2025 buy-out is devastating.
Regardless of what the White House thinks, know that your expertise and your skills are so valuable and desperately needed in this country, my friends.
Regardless of what the White House thinks, know that your expertise and your skills are so valuable and desperately needed in this country, my friends.
Can someone explain to me how tossing books, etc, into the trash is an established method, federal or not, to properly dispose of anything? That is outrageous! (Quote below from the NY Times article.)
December 31, 2025 at 11:55 PM
Can someone explain to me how tossing books, etc, into the trash is an established method, federal or not, to properly dispose of anything? That is outrageous! (Quote below from the NY Times article.)
Reposted by Colin Seftor
Looking back at another extreme year for Canadian #wildfires resulting in 2025 with the 2nd highest annual total estimated emissions, after 2023. Read more in the #CopernicusAtmosphere global fire emissions review atmosphere.copernicus.eu/2025-sees-in... @copernicusecmwf.bsky.social @ecmwf.int
December 11, 2025 at 11:45 AM
Looking back at another extreme year for Canadian #wildfires resulting in 2025 with the 2nd highest annual total estimated emissions, after 2023. Read more in the #CopernicusAtmosphere global fire emissions review atmosphere.copernicus.eu/2025-sees-in... @copernicusecmwf.bsky.social @ecmwf.int
Reposted by Colin Seftor
Gallego to Hegseth: "You will never ever be half the man that Sen. Kelly is. You, sir, are a coward. And the fact that you are following this order from the president shows how big of a coward you are. I can't wait until you are no longer the secretary of defense."
November 24, 2025 at 9:45 PM
Gallego to Hegseth: "You will never ever be half the man that Sen. Kelly is. You, sir, are a coward. And the fact that you are following this order from the president shows how big of a coward you are. I can't wait until you are no longer the secretary of defense."
Beautiful day in the Arlington County / DC area for a walk with a few friends (halfway across the Memorial Bridge on a No Kings protest walk; you can see the Lincoln Memorial peeking through the crowd). #NoKings
October 18, 2025 at 6:39 PM
Beautiful day in the Arlington County / DC area for a walk with a few friends (halfway across the Memorial Bridge on a No Kings protest walk; you can see the Lincoln Memorial peeking through the crowd). #NoKings
Reposted by Colin Seftor
🔴⚠️🌡️Hell is ongoing in #Spain where #wildfires are burning many thousands of hectares pushed by dry weather and strong winds. This #Sentinel2 📸shows the situation at the border of Galicia and Castilla y León,the most affected regions. with visible pyrocumulonimbus #climateemergency
August 16, 2025 at 10:36 PM
🔴⚠️🌡️Hell is ongoing in #Spain where #wildfires are burning many thousands of hectares pushed by dry weather and strong winds. This #Sentinel2 📸shows the situation at the border of Galicia and Castilla y León,the most affected regions. with visible pyrocumulonimbus #climateemergency
Reposted by Colin Seftor
🚀 🧪#NASACuts
NASA’s Unsung Workforce: Contractors
Over half of #NASA’s workforce are contractors.
Depending on the center, the proportion ranges from 50% to 70%+. Goddard—the most science-focused of all NASA centers—is at the upper end.
There are two main types of NASA contractors.
1/8
NASA’s Unsung Workforce: Contractors
Over half of #NASA’s workforce are contractors.
Depending on the center, the proportion ranges from 50% to 70%+. Goddard—the most science-focused of all NASA centers—is at the upper end.
There are two main types of NASA contractors.
1/8
August 1, 2025 at 1:39 PM
🚀 🧪#NASACuts
NASA’s Unsung Workforce: Contractors
Over half of #NASA’s workforce are contractors.
Depending on the center, the proportion ranges from 50% to 70%+. Goddard—the most science-focused of all NASA centers—is at the upper end.
There are two main types of NASA contractors.
1/8
NASA’s Unsung Workforce: Contractors
Over half of #NASA’s workforce are contractors.
Depending on the center, the proportion ranges from 50% to 70%+. Goddard—the most science-focused of all NASA centers—is at the upper end.
There are two main types of NASA contractors.
1/8
Reposted by Colin Seftor
SpaceX is altering atmospheric chemistry. Over 525 Starlinks deorbited in the past few months. A Starlink satellite produces 30 KG of aluminum oxide vapor which erodes the ozone layer. These oxides have increased 8-fold between 2016 and 2022. NOAA predicts this could heat the stratosphere 1.5°C
August 6, 2025 at 12:32 AM
SpaceX is altering atmospheric chemistry. Over 525 Starlinks deorbited in the past few months. A Starlink satellite produces 30 KG of aluminum oxide vapor which erodes the ozone layer. These oxides have increased 8-fold between 2016 and 2022. NOAA predicts this could heat the stratosphere 1.5°C
Reposted by Colin Seftor
As NASA's budget shrinks, Europe doubles down on Earth science
As NASA's budget shrinks, Europe doubles down on Earth science: 'Climate change is the defining challenge of our generation'
If NASA must pull back, Europe is ready to step up — and do so with open arms.
www.space.com
July 13, 2025 at 6:43 AM
As NASA's budget shrinks, Europe doubles down on Earth science
Reposted by Colin Seftor
The area burned in the Canadian 2025 fire season has hit 5 million ha. Third active fire season in a row that combined has burned 7% of the Canadian forest. Currently we have 346 fires out of control (192 monitored out of control (OC) and 154 OC that are being actioned) so expect the number to rise.
July 11, 2025 at 4:09 AM
The area burned in the Canadian 2025 fire season has hit 5 million ha. Third active fire season in a row that combined has burned 7% of the Canadian forest. Currently we have 346 fires out of control (192 monitored out of control (OC) and 154 OC that are being actioned) so expect the number to rise.
Reposted by Colin Seftor
An email that appears to have come from the real Social Security administration.
Which until now had been considered a non-partisan federal agency.
Time for another look at 'The Origins of Totalitarianism.'
Which until now had been considered a non-partisan federal agency.
Time for another look at 'The Origins of Totalitarianism.'
July 4, 2025 at 3:39 AM
An email that appears to have come from the real Social Security administration.
Which until now had been considered a non-partisan federal agency.
Time for another look at 'The Origins of Totalitarianism.'
Which until now had been considered a non-partisan federal agency.
Time for another look at 'The Origins of Totalitarianism.'
Reposted by Colin Seftor
July 1, 2025 at 11:58 AM
A series of pyroCb events in Alaska over the last few days have combined with high altitude windws to produce a smoke plume that stretches across Alaska, through western Canada / US, and into California / Nevada. This image shows N20 OMPS AI measurements. The length of the plume is over 4500 km.
June 24, 2025 at 6:59 AM
A series of pyroCb events in Alaska over the last few days have combined with high altitude windws to produce a smoke plume that stretches across Alaska, through western Canada / US, and into California / Nevada. This image shows N20 OMPS AI measurements. The length of the plume is over 4500 km.
Reposted by Colin Seftor
So far the five provinces all have above average estimated emissions to date with Manitoba already setting its highest annual total, and Saskatchewan & Ontario highest total for time of year, in the 23-year dataset #CopernicusAtmosphere dataset
June 11, 2025 at 7:32 PM
So far the five provinces all have above average estimated emissions to date with Manitoba already setting its highest annual total, and Saskatchewan & Ontario highest total for time of year, in the 23-year dataset #CopernicusAtmosphere dataset
Reposted by Colin Seftor
Total estimated emissions from Canadian #wildfires continuing to increase sharply (to 10 June) with many intense fires in BC, AB, SK, MB & ON. #CopernicusAtmosphere GFAS data based on MODIS🛰️ active fire obs ads.atmosphere.copernicus.eu/datasets/cam... @copernicusecmwf.bsky.social @ecmwf.int
June 11, 2025 at 7:32 PM
Total estimated emissions from Canadian #wildfires continuing to increase sharply (to 10 June) with many intense fires in BC, AB, SK, MB & ON. #CopernicusAtmosphere GFAS data based on MODIS🛰️ active fire obs ads.atmosphere.copernicus.eu/datasets/cam... @copernicusecmwf.bsky.social @ecmwf.int
Reposted by Colin Seftor
This is on all the Senators who turned a blind eye and voted to confirm. www.nytimes.com/2025/06/09/h...
Kennedy Removes All C.D.C. Vaccine Panel Experts
www.nytimes.com
June 9, 2025 at 9:41 PM
This is on all the Senators who turned a blind eye and voted to confirm. www.nytimes.com/2025/06/09/h...
Reposted by Colin Seftor
On our blog, our online editor @drmlharris.bsky.social writes about the surreal experience of attending a space conference where no-one seems keen to mention the biggest threat to the sector's future: drastic proposed cuts to US science funding, including NASA. 🧪⚛️🔭 physicsworld.com/a/theres-an-...
There’s an elephant in the room at the Royal Society – and for once, it’s not (just) Elon Musk – Physics World
A conference on the future of the UK space sector makes stunningly little mention of how proposed cuts to NASA funding might affect it
physicsworld.com
June 9, 2025 at 2:08 PM
On our blog, our online editor @drmlharris.bsky.social writes about the surreal experience of attending a space conference where no-one seems keen to mention the biggest threat to the sector's future: drastic proposed cuts to US science funding, including NASA. 🧪⚛️🔭 physicsworld.com/a/theres-an-...
Reposted by Colin Seftor
Canada wildfires smoke turns UK skies orange
#AirPollution knows no borders!
#Health #Environment
www.bbc.co.uk/weather/arti...
#AirPollution knows no borders!
#Health #Environment
www.bbc.co.uk/weather/arti...
Canada wildfires smoke turns UK skies orange
Smoke from wildfires burning in central Canada was visible in the skies over the UK this weekend.
www.bbc.co.uk
June 8, 2025 at 1:16 PM
Canada wildfires smoke turns UK skies orange
#AirPollution knows no borders!
#Health #Environment
www.bbc.co.uk/weather/arti...
#AirPollution knows no borders!
#Health #Environment
www.bbc.co.uk/weather/arti...
Reposted by Colin Seftor
Look close at this recent satellite view and you can see the thin layer of smoke. We've got the current smoke situation, and the latest DC area forecast for mid-to-late week heat, at cwg.live
June 3, 2025 at 6:19 PM
Look close at this recent satellite view and you can see the thin layer of smoke. We've got the current smoke situation, and the latest DC area forecast for mid-to-late week heat, at cwg.live
Reposted by Colin Seftor
US climate scientists need all the help they can get. Including from foul-mouthed comedians! 🤡😱😱
Watch Emmy Award-Winning David Cross team up with Prof Michael Oppenheimer in the US launch of the hit series "Climate Science Translated".
#climate #arresteddevelopment #climatescience
Watch Emmy Award-Winning David Cross team up with Prof Michael Oppenheimer in the US launch of the hit series "Climate Science Translated".
#climate #arresteddevelopment #climatescience
June 2, 2025 at 11:55 AM
US climate scientists need all the help they can get. Including from foul-mouthed comedians! 🤡😱😱
Watch Emmy Award-Winning David Cross team up with Prof Michael Oppenheimer in the US launch of the hit series "Climate Science Translated".
#climate #arresteddevelopment #climatescience
Watch Emmy Award-Winning David Cross team up with Prof Michael Oppenheimer in the US launch of the hit series "Climate Science Translated".
#climate #arresteddevelopment #climatescience
Reposted by Colin Seftor
Sun rising Tuesday through smoky #Haze over the Jefferson Memorial in #DC! @capitalweather.bsky.social @ianlivingston.bsky.social
June 3, 2025 at 11:26 AM
Sun rising Tuesday through smoky #Haze over the Jefferson Memorial in #DC! @capitalweather.bsky.social @ianlivingston.bsky.social
Reposted by Colin Seftor
Cuts have consequences, illustrated. As seen on TV 📺
June 3, 2025 at 12:45 AM
Cuts have consequences, illustrated. As seen on TV 📺