William Colgan
@glacierbytes.bsky.social
Science hustler into ice-sheet and sea-level research. Canadian living in Denmark and working in Greenland. 'The Color of Ice' documentary is now streaming open-access on WaterBear Network!
www.williamcolgan.net
www.williamcolgan.net
Pinned
William Colgan
@glacierbytes.bsky.social
· Feb 16
Yes, THE COLOR OF ICE is being released into the wilds of the wide open internet! You can now stream our documentary open access on WaterBear Network:
www.waterbear.com/watch/color-...
We’re delighted to add our voices to the messages of climate urgency already curated on WaterBear! 💙
www.waterbear.com/watch/color-...
We’re delighted to add our voices to the messages of climate urgency already curated on WaterBear! 💙
🚨 If you're a Canadian-curious researcher currently based outside of Canada, you need to check out the Canada Impact+ Research Chairs programme! 🚨
Competitive single-PI grants for up to 1M CAD/yr for eight years (8M CAD!) to attract folks to Canada! 🤩 #ElbowsUp 🫠
Competitive single-PI grants for up to 1M CAD/yr for eight years (8M CAD!) to attract folks to Canada! 🤩 #ElbowsUp 🫠
January 9, 2026 at 3:15 PM
🚨 If you're a Canadian-curious researcher currently based outside of Canada, you need to check out the Canada Impact+ Research Chairs programme! 🚨
Competitive single-PI grants for up to 1M CAD/yr for eight years (8M CAD!) to attract folks to Canada! 🤩 #ElbowsUp 🫠
Competitive single-PI grants for up to 1M CAD/yr for eight years (8M CAD!) to attract folks to Canada! 🤩 #ElbowsUp 🫠
Hey again ice-sheet modellers! 👋
Reminder that registration for the ISMIP7-Copenhagen workshop closes next week (Jan 15). 👇
Reminder that registration for the ISMIP7-Copenhagen workshop closes next week (Jan 15). 👇
Hey ice-sheet modellers! 👋
The next Ice Sheet Model Intercomparison Project (ISMIP) workshop will be hosted in Copenhagen (at GEUS) 23-25 March 2026. Details to follow!
Learn more about ISMIP at: www.ismip.org
The next Ice Sheet Model Intercomparison Project (ISMIP) workshop will be hosted in Copenhagen (at GEUS) 23-25 March 2026. Details to follow!
Learn more about ISMIP at: www.ismip.org
Ice Sheet Model Intercomparison Project
ISMIP7 is the Ice Sheet Model Intercomparison Project for CMIP7 (pronounced `IZ-mip`)
Melt of Earth's ice sheets is already contributing to flooding experienced by coastal communities, globally.
ISM...
www.ismip.org
January 9, 2026 at 6:43 AM
Hey again ice-sheet modellers! 👋
Reminder that registration for the ISMIP7-Copenhagen workshop closes next week (Jan 15). 👇
Reminder that registration for the ISMIP7-Copenhagen workshop closes next week (Jan 15). 👇
The IPCC will, of course, hum along without U.S. participation, but folks will be hoping for their swift return.
Until then, give hugs to your climate-conscious U.S. friends, and encourage them to keep fighting for a livable future.
It’s always darkest before dawn.
🌍👊
eos.org/research-and...
Until then, give hugs to your climate-conscious U.S. friends, and encourage them to keep fighting for a livable future.
It’s always darkest before dawn.
🌍👊
eos.org/research-and...
January 8, 2026 at 6:45 PM
The IPCC will, of course, hum along without U.S. participation, but folks will be hoping for their swift return.
Until then, give hugs to your climate-conscious U.S. friends, and encourage them to keep fighting for a livable future.
It’s always darkest before dawn.
🌍👊
eos.org/research-and...
Until then, give hugs to your climate-conscious U.S. friends, and encourage them to keep fighting for a livable future.
It’s always darkest before dawn.
🌍👊
eos.org/research-and...
All my American friends right now. 👇
January 6, 2026 at 6:57 PM
All my American friends right now. 👇
I suspect the entire Kingdom of Denmark is celebrating ‘Festivus’ this year, which begins with the quirky tradition of ‘airing of grievances’ 👇
www.theguardian.com/world/2025/d...
www.theguardian.com/world/2025/d...
December 23, 2025 at 2:36 AM
I suspect the entire Kingdom of Denmark is celebrating ‘Festivus’ this year, which begins with the quirky tradition of ‘airing of grievances’ 👇
www.theguardian.com/world/2025/d...
www.theguardian.com/world/2025/d...
Reposted by William Colgan
There are 211,500 glaciers on this planet and we'll lose most of them this century because of human emissions! 🧊🔥
The peak of glacier extinction will occur 2040 to 2055! 📈
But each fraction of degree matters! 🌡️
Some of them can be saved! 🙏
@landervt.bsky.social
www.nature.com/articles/s41...
The peak of glacier extinction will occur 2040 to 2055! 📈
But each fraction of degree matters! 🌡️
Some of them can be saved! 🙏
@landervt.bsky.social
www.nature.com/articles/s41...
December 18, 2025 at 3:44 PM
There are 211,500 glaciers on this planet and we'll lose most of them this century because of human emissions! 🧊🔥
The peak of glacier extinction will occur 2040 to 2055! 📈
But each fraction of degree matters! 🌡️
Some of them can be saved! 🙏
@landervt.bsky.social
www.nature.com/articles/s41...
The peak of glacier extinction will occur 2040 to 2055! 📈
But each fraction of degree matters! 🌡️
Some of them can be saved! 🙏
@landervt.bsky.social
www.nature.com/articles/s41...
Agreed. 👇
As scientists 🧪 who regularly attend UN #climate summits, we've noticed efforts to downplay, confuse and dilute the latest scientific findings, especially from the cryosphere ❄️.
This is alarming.
More details in @theconversation.com
theconversation.com/earths-froze...
@geogdurham.bsky.social
This is alarming.
More details in @theconversation.com
theconversation.com/earths-froze...
@geogdurham.bsky.social
Earth’s frozen regions are sending a clear warning about climate change – but politicians are ignoring it
The warning lights from the cryosphere have been flashing red for several years and governments and policymakers ignore this at their peril.
theconversation.com
December 18, 2025 at 7:31 PM
Agreed. 👇
🥺
The NSF has a short post on how it plans to take apart NCAR. (No, that is not a sentence I ever foresaw typing.)
www.nsf.gov/news/intent-...
www.nsf.gov/news/intent-...
Intent to restructure critical weather science infrastructure
The U.S. National Science Foundation (NSF) announced today that the agency is reviewing the structure of the research and observational capabilities operated by the NSF National Center for Atmospheric...
www.nsf.gov
December 17, 2025 at 8:25 PM
🥺
I’ve enjoyed many years of @agu.org Annual Meeting — it’s a fantastic gathering of our diverse research community! — but it seems I’m not alone in sitting out this year. 👀
Wishing a delightful #AGU25 to all who participate!
Wishing a delightful #AGU25 to all who participate!
Attendance at US-based science conferences is bouncing around this year but generally down. #AGU25 has ~10k fewer this year! I explored these trends for @nature.com — including solutions to keep conferences local & productive:
www.nature.com/articles/d41...
🧪
www.nature.com/articles/d41...
🧪
Scientists skip key US meetings — and seize on smaller alternatives
Researchers are devising creative ways to get together as Trump’s policies curb travel to US gatherings.
www.nature.com
December 17, 2025 at 8:23 PM
The folks at @ncar-ucar.bsky.social are among the world’s best minds on global climate— exceptional individually and extraordinary together! I have fond memories of the long cycle up to the Mesa Laboratory during my PhD at Boulder.
Thoughts and prayers for them tonight. 🥺
Thoughts and prayers for them tonight. 🥺
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
bit.ly
December 17, 2025 at 8:08 PM
The folks at @ncar-ucar.bsky.social are among the world’s best minds on global climate— exceptional individually and extraordinary together! I have fond memories of the long cycle up to the Mesa Laboratory during my PhD at Boulder.
Thoughts and prayers for them tonight. 🥺
Thoughts and prayers for them tonight. 🥺
Yes! @icymatters.bsky.social and I are seeking a project coordinator for using highly specialized vehicles on the Greenland ice sheet! It's a four-year position across two projects: 'Seis-Sustain' funded by the @novo-nordisk.bsky.social and 'FirnMelt' funded by @erc.europa.eu.
December 16, 2025 at 8:38 AM
Yes! @icymatters.bsky.social and I are seeking a project coordinator for using highly specialized vehicles on the Greenland ice sheet! It's a four-year position across two projects: 'Seis-Sustain' funded by the @novo-nordisk.bsky.social and 'FirnMelt' funded by @erc.europa.eu.
Hey Folks! 👋
If you've got a moment -- mere moment! -- drop a like for 'Girls on Ice Austria' in this empowerment fundraiser by FrauTIROLER. They receive 1€ for every like up to 5000 likes! 👍
www.frautiroler.info/girls-on-ice...
If you've got a moment -- mere moment! -- drop a like for 'Girls on Ice Austria' in this empowerment fundraiser by FrauTIROLER. They receive 1€ for every like up to 5000 likes! 👍
www.frautiroler.info/girls-on-ice...
Girls* on Ice Austria 2026: Expedition, Workshops & Alumni-Treff - FrauTIROLER
Stell dir vor, du bist ein fünfzehnjähriges Mädchen, das in einem Dorf im Unterland wohnt. Deine Mutter ist… Mehr Info
www.frautiroler.info
December 9, 2025 at 7:16 AM
Hey Folks! 👋
If you've got a moment -- mere moment! -- drop a like for 'Girls on Ice Austria' in this empowerment fundraiser by FrauTIROLER. They receive 1€ for every like up to 5000 likes! 👍
www.frautiroler.info/girls-on-ice...
If you've got a moment -- mere moment! -- drop a like for 'Girls on Ice Austria' in this empowerment fundraiser by FrauTIROLER. They receive 1€ for every like up to 5000 likes! 👍
www.frautiroler.info/girls-on-ice...
Our first Lead Author Meeting of the #IPCC Seventh Assessment Report was an incredible experience last week! Merci @ipcc.bsky.social!
Now, we are writing our way towards zero-order-draft (ZOD).
#LAM1 #ClimateScience #ClimateAction #ClimateChange #ClimatePolicy #Adaptation #Mitigation #AR7
Now, we are writing our way towards zero-order-draft (ZOD).
#LAM1 #ClimateScience #ClimateAction #ClimateChange #ClimatePolicy #Adaptation #Mitigation #AR7
December 8, 2025 at 8:29 PM
Our first Lead Author Meeting of the #IPCC Seventh Assessment Report was an incredible experience last week! Merci @ipcc.bsky.social!
Now, we are writing our way towards zero-order-draft (ZOD).
#LAM1 #ClimateScience #ClimateAction #ClimateChange #ClimatePolicy #Adaptation #Mitigation #AR7
Now, we are writing our way towards zero-order-draft (ZOD).
#LAM1 #ClimateScience #ClimateAction #ClimateChange #ClimatePolicy #Adaptation #Mitigation #AR7
Yes, this week Lead Authors for the @ipcc.bsky.social Seventh Assessment Report (AR7) are meeting in Paris — almost 700 of us across all three working groups!
As IPCC Chair Jim Skea shares, there's even some highest-level climate diplomacy happening beyond the plenary sessions. 👇
As IPCC Chair Jim Skea shares, there's even some highest-level climate diplomacy happening beyond the plenary sessions. 👇
December 2, 2025 at 8:35 PM
Yes, this week Lead Authors for the @ipcc.bsky.social Seventh Assessment Report (AR7) are meeting in Paris — almost 700 of us across all three working groups!
As IPCC Chair Jim Skea shares, there's even some highest-level climate diplomacy happening beyond the plenary sessions. 👇
As IPCC Chair Jim Skea shares, there's even some highest-level climate diplomacy happening beyond the plenary sessions. 👇
🎉🇩🇰🌍
As Denmark announces the world's most ambitious climate plan, COP30 negotiations are sharpening with a framework for two packages now. Read the latest from Belém: bloom.bg/49mrZEx
November 19, 2025 at 8:12 PM
🎉🇩🇰🌍
You can learn more about the Climate Vulnerable Forum, and their bid for observer status at the UN General Assembly, at: cvfv20.org
November 18, 2025 at 6:36 PM
You can learn more about the Climate Vulnerable Forum, and their bid for observer status at the UN General Assembly, at: cvfv20.org
Denmark at #COP30 quietly showing the way to >80% reduction in carbon dioxide emissions by 2035 (relative to 1990 NDC baseline). 🇩🇰✊
Regeringen vil have et af verdens mest ambitiøse klimamål for 2035.
Klimaminister @larsaagaard.bsky.social har netop præsenteret regeringens forslag på COP30 i Belem.
Regeringen foreslår, at der fastsættes et punktmål for 2035 på mellem 82 og 85 procent.
Læs mere👇
www.kefm.dk/aktuelt/nyhe...
Klimaminister @larsaagaard.bsky.social har netop præsenteret regeringens forslag på COP30 i Belem.
Regeringen foreslår, at der fastsættes et punktmål for 2035 på mellem 82 og 85 procent.
Læs mere👇
www.kefm.dk/aktuelt/nyhe...
November 17, 2025 at 6:44 PM
Denmark at #COP30 quietly showing the way to >80% reduction in carbon dioxide emissions by 2035 (relative to 1990 NDC baseline). 🇩🇰✊
Reposted by William Colgan
We cannot air condition our way out of the heat crisis.
Many cooling methods add planet warming emissions, in-turn increasing cooling demand.
But solutions exist to make cooling more sustainable & affordable: www.unep.org/news-and-sto...
#COP30
Many cooling methods add planet warming emissions, in-turn increasing cooling demand.
But solutions exist to make cooling more sustainable & affordable: www.unep.org/news-and-sto...
#COP30
November 16, 2025 at 8:01 AM
We cannot air condition our way out of the heat crisis.
Many cooling methods add planet warming emissions, in-turn increasing cooling demand.
But solutions exist to make cooling more sustainable & affordable: www.unep.org/news-and-sto...
#COP30
Many cooling methods add planet warming emissions, in-turn increasing cooling demand.
But solutions exist to make cooling more sustainable & affordable: www.unep.org/news-and-sto...
#COP30
For Greenlandic folks — an overview of our FirnMelt ERC Synergy ambitions reported in Sermitsiaq. 👇
Ilisimatuut sermersuarmi ‘milluaasumik’ misissuinissainnut millionilikkaanik aningaasaliiffigineqartut - Sermitsiaq
kl.sermitsiaq.ag/inuiaqatigii...
kl.sermitsiaq.ag/inuiaqatigii...
Ilisimatuut sermersuarmi ‘milluaasumik’ misissuinissainnut millionilikkaanik aningaasaliiffigineqartut
Sermersuup qaava apummik qallerneqarsimasoq nalinginnaasumik imermik aakkiartortumik annertuumik imaqartarpoq, maannakkulli sermersuup sinneranut sunniuteqangaarsinnaasunik allanngortoqarpoq. Tamanna ...
kl.sermitsiaq.ag
November 17, 2025 at 6:17 PM
For Greenlandic folks — an overview of our FirnMelt ERC Synergy ambitions reported in Sermitsiaq. 👇
When it comes to the Amazon, seeing is believing. 👀
#COP30 👊🌎
#COP30 👊🌎
When they announced that #COP30 would be in Belém and all the logistical problems that followed, I was convinced it was a bad idea...
On 09/11 flying to Belém, the plane was packed with foreigners talking and laughing... as we approached landing, we could see the forest, silence took over...
On 09/11 flying to Belém, the plane was packed with foreigners talking and laughing... as we approached landing, we could see the forest, silence took over...
November 17, 2025 at 6:02 PM
When it comes to the Amazon, seeing is believing. 👀
#COP30 👊🌎
#COP30 👊🌎
When folks ask what I’ve done to reduce my personal carbon footprint, I say ‘I moved from Toronto to Copenhagen’. It may sound glib, but per capita emissions are 3-4 lower. Our carbon footprints are shaped by our legislation.
🇪🇺👊
🇪🇺👊
The climate crisis won’t wait — and neither will we.
EU countries have agreed on a new, ambitious climate commitment under the Paris Agreement.
At #COP30 in Brazil, Europe stands united, delivering on its climate promises ↓
EU countries have agreed on a new, ambitious climate commitment under the Paris Agreement.
At #COP30 in Brazil, Europe stands united, delivering on its climate promises ↓
November 16, 2025 at 7:22 PM
When folks ask what I’ve done to reduce my personal carbon footprint, I say ‘I moved from Toronto to Copenhagen’. It may sound glib, but per capita emissions are 3-4 lower. Our carbon footprints are shaped by our legislation.
🇪🇺👊
🇪🇺👊
‘Saudi Arabia’s average temperature rose by 2.2C between 1979 and 2019, almost three times faster than the global rate, and even faster in Riyadh and Mecca.’ 👀
$170,000 a minute: Why Saudi Arabia is the biggest blocker of climate action
The desert kingdom depends on oil dollars but its people already face a climate ‘at the verge of livability’. What’s going on?
#COP30 #climatecrisis
Story by me
1/7
www.theguardian.com/world/2025/n...
The desert kingdom depends on oil dollars but its people already face a climate ‘at the verge of livability’. What’s going on?
#COP30 #climatecrisis
Story by me
1/7
www.theguardian.com/world/2025/n...
$170,000 a minute: why Saudi Arabia is the biggest blocker of climate action
Desert kingdom depends on oil dollars but its people already face a climate ‘at the verge of livability’. What’s going on?
www.theguardian.com
November 16, 2025 at 7:02 PM
‘Saudi Arabia’s average temperature rose by 2.2C between 1979 and 2019, almost three times faster than the global rate, and even faster in Riyadh and Mecca.’ 👀
The increasing participation of fossil-fuel lobbyists in recent COP meetings is concerning. Climate solutions should be shaped by those committed to real progress, not by those invested in slowing it down.
Fossil fuel lobbyists outnumber all Cop30 delegations except Brazil, report says
Fossil fuel lobbyists outnumber all Cop30 delegations except Brazil, report says
One in every 25 participants at 2025 UN climate summit is a fossil fuel lobbyist, according to Kick Big Polluters Out
More than 1,600 fossil fuel lobbyists have been granted access to the Cop30 climate negotiations in Belém, significantly outnumbering every single country’s delegation apart from the host Brazil, new analysis has found.
One in every 25 participants at this year’s UN climate summit is a fossil fuel lobbyist, according to the analysis by the Kick Big Polluters Out (KBPO) coalition, raising serious questions about the corporate capture and credibility of the annual Cop negotiations. Continue reading...
www.theguardian.com
November 14, 2025 at 3:34 PM
The increasing participation of fossil-fuel lobbyists in recent COP meetings is concerning. Climate solutions should be shaped by those committed to real progress, not by those invested in slowing it down.
Reposted by William Colgan
Protest comes as Brazil's leader Lula says COP30 participants should be 'inspired' by Indigenous peoples.
Indigenous activists storm COP30 climate summit in Brazil, demanding action
Protest comes as Brazil's leader Lula says COP30 participants should be 'inspired' by Indigenous peoples.
bit.ly
November 12, 2025 at 4:30 AM
Protest comes as Brazil's leader Lula says COP30 participants should be 'inspired' by Indigenous peoples.
This overview of the increasing effects of climate change — Inconvenient Truth 3.0! — should be shown in every university classroom.
What a different world we could have. 🥹
What a different world we could have. 🥹
Excellent video - watch!
Al Gore speaks at COP30 in Brazil.
Al Gore speaks at COP30 in Brazil.
Former U.S. VP Al Gore Reveals Shocking Data on Global Warming and Extreme Climate Events | AC1N
YouTube video by DRM News
youtu.be
November 14, 2025 at 3:28 PM
This overview of the increasing effects of climate change — Inconvenient Truth 3.0! — should be shown in every university classroom.
What a different world we could have. 🥹
What a different world we could have. 🥹