Signe Aaboe
@signeaaboe.bsky.social
Climate and sea-ice scientist at MET Norway.
Research interests include sea ice, oceans, and polar climate. Living in the far north and love gardening, hiking, paddling, and drinking coffee. Any opinions expressed are my own.
Research interests include sea ice, oceans, and polar climate. Living in the far north and love gardening, hiking, paddling, and drinking coffee. Any opinions expressed are my own.
How has the Arctic sea-ice extent changed since 1979?
* large intraannual variabilities
* large interannual variabilities
* however, a clear long-term negative trend is evident for any day of the year.
* large intraannual variabilities
* large interannual variabilities
* however, a clear long-term negative trend is evident for any day of the year.
January 5, 2026 at 9:27 PM
How has the Arctic sea-ice extent changed since 1979?
* large intraannual variabilities
* large interannual variabilities
* however, a clear long-term negative trend is evident for any day of the year.
* large intraannual variabilities
* large interannual variabilities
* however, a clear long-term negative trend is evident for any day of the year.
Reposted by Signe Aaboe
Major heat wave in the North Atlantic had widespread and lasting impacts on marine life | Science Advances www.science.org/doi/10.1126/...
January 2, 2026 at 12:30 PM
Major heat wave in the North Atlantic had widespread and lasting impacts on marine life | Science Advances www.science.org/doi/10.1126/...
Beautiful graphics.
Unpleasant message.
Unpleasant message.
2025 goes down as the ~3rd-warmest year on record (based on ERA5).
Like in 2024, every single day this past year was warmer than the average of even the most recent reference period (1991-2020).
Like in 2024, every single day this past year was warmer than the average of even the most recent reference period (1991-2020).
January 4, 2026 at 9:06 PM
Beautiful graphics.
Unpleasant message.
Unpleasant message.
Reposted by Signe Aaboe
"In her statement, posted on the Danish government website, [Danish Prime Minister Mette] Frederiksen said she was addressing the US 'very directly'.
She said Denmark - 'and thus Greenland' - was a NATO member and covered by the alliance's security guarantee"
She said Denmark - 'and thus Greenland' - was a NATO member and covered by the alliance's security guarantee"
Danish PM tells Trump to stop 'threats' against Greenland
Mette Frederiksen said the "US has no right to annex any of the three nations in the Danish kingdom".
www.bbc.com
January 4, 2026 at 8:46 PM
"In her statement, posted on the Danish government website, [Danish Prime Minister Mette] Frederiksen said she was addressing the US 'very directly'.
She said Denmark - 'and thus Greenland' - was a NATO member and covered by the alliance's security guarantee"
She said Denmark - 'and thus Greenland' - was a NATO member and covered by the alliance's security guarantee"
Reposted by Signe Aaboe
«Hybridkrig» - en bok av @trinehamran.bsky.social som jeg fikk lest nå i Romjula - gir et bra og kritisk overblikk over russisk innflytelse på Norge. Mange tankevekkende eksempler fra blant annet Nordnorge og Svalbard.
Aktuell og anbefales 👍
Aktuell og anbefales 👍
January 4, 2026 at 4:50 PM
«Hybridkrig» - en bok av @trinehamran.bsky.social som jeg fikk lest nå i Romjula - gir et bra og kritisk overblikk over russisk innflytelse på Norge. Mange tankevekkende eksempler fra blant annet Nordnorge og Svalbard.
Aktuell og anbefales 👍
Aktuell og anbefales 👍
Beautiful full moon yesterday 🌕
So big and bright and majestic 🤍
The picture doesn't do justice to how it felt walking in the polar night with almost full silver daylight 😍
So big and bright and majestic 🤍
The picture doesn't do justice to how it felt walking in the polar night with almost full silver daylight 😍
January 4, 2026 at 10:01 AM
Beautiful full moon yesterday 🌕
So big and bright and majestic 🤍
The picture doesn't do justice to how it felt walking in the polar night with almost full silver daylight 😍
So big and bright and majestic 🤍
The picture doesn't do justice to how it felt walking in the polar night with almost full silver daylight 😍
Reposted by Signe Aaboe
The rate of global mean sea level rise has increased from ~2.1 mm/year in 1993 to ~4.5 mm/year in 2023. www.nature.com/articles/s43...
The rate of global sea level rise doubled during the past three decades - Communications Earth & Environment
Global mean sea level rise amounted to 4.5 mm per year as a result of warming oceans and melting land ice, more than twice the rate of 2.1 mm/year observed at the start of satellite data in 1993, base...
www.nature.com
January 3, 2026 at 9:18 PM
The rate of global mean sea level rise has increased from ~2.1 mm/year in 1993 to ~4.5 mm/year in 2023. www.nature.com/articles/s43...
Reposted by Signe Aaboe
Hvis USA invaderer Grønland, vil NATO bryte sammen og Arktisk råd gå i oppløsing? Og vil Norge og EU sanskjonere mot USA? Vil vi slutte å bruke Microsoft, Apple og Google, og vil Oljefondet selge seg ut av amerikanske invisteringer? www.nrk.no/nyheter/trum...
Trumps visestabssjefs kone deler oppsiktsvekkende innlegg om Grønland
Et innlegg med bilde av Grønland med amerikansk flagg over har fått mye oppmerksomhet på X. Søndag morgen har innlegget over 4 millioner visninger, og er publisert av Katie Miller. Hun har tidligere v...
www.nrk.no
January 4, 2026 at 7:42 AM
Hvis USA invaderer Grønland, vil NATO bryte sammen og Arktisk råd gå i oppløsing? Og vil Norge og EU sanskjonere mot USA? Vil vi slutte å bruke Microsoft, Apple og Google, og vil Oljefondet selge seg ut av amerikanske invisteringer? www.nrk.no/nyheter/trum...
Reposted by Signe Aaboe
A picture is worth 1000 words...
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
January 2, 2026 at 4:53 PM
A picture is worth 1000 words...
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
Reposted by Signe Aaboe
Want to discover great posts beyond who you already follow? The For You feed, built by @spacecowboy17.bsky.social, is a personalized algorithmic feed based on your likes. It's one of our favorites for finding cool conversations across the network.
Try it here: bsky.app/profile/spac...
Try it here: bsky.app/profile/spac...
January 2, 2026 at 4:59 PM
Want to discover great posts beyond who you already follow? The For You feed, built by @spacecowboy17.bsky.social, is a personalized algorithmic feed based on your likes. It's one of our favorites for finding cool conversations across the network.
Try it here: bsky.app/profile/spac...
Try it here: bsky.app/profile/spac...
Reposted by Signe Aaboe
🌨 Following ~6 cm of fresh snowfall in the last ~24hrs, the snow in #Tromsø is currently 64.1 cm deep. It has snowed 6 times on this date since 2016: in 2017, 2018, 2019, 2021, 2023, and 2025, with the most snow falling in 2025 (10 cm).
January 2, 2026 at 9:30 AM
🌨 Following ~6 cm of fresh snowfall in the last ~24hrs, the snow in #Tromsø is currently 64.1 cm deep. It has snowed 6 times on this date since 2016: in 2017, 2018, 2019, 2021, 2023, and 2025, with the most snow falling in 2025 (10 cm).
Reposted by Signe Aaboe
Have you explored the new CARRA2 Arctic reanalysis in the Climate Data Store yet?
#C3S now provides 2.5 km pan‑Arctic coverage, 24 years of data, more realistic snow/sea‑ice/glacier physics and added detail on local extremes.
Learn more in our article: climate.copernicus.eu/first-carra2...
#C3S now provides 2.5 km pan‑Arctic coverage, 24 years of data, more realistic snow/sea‑ice/glacier physics and added detail on local extremes.
Learn more in our article: climate.copernicus.eu/first-carra2...
January 2, 2026 at 9:45 AM
Have you explored the new CARRA2 Arctic reanalysis in the Climate Data Store yet?
#C3S now provides 2.5 km pan‑Arctic coverage, 24 years of data, more realistic snow/sea‑ice/glacier physics and added detail on local extremes.
Learn more in our article: climate.copernicus.eu/first-carra2...
#C3S now provides 2.5 km pan‑Arctic coverage, 24 years of data, more realistic snow/sea‑ice/glacier physics and added detail on local extremes.
Learn more in our article: climate.copernicus.eu/first-carra2...
Reposted by Signe Aaboe
A dead, fallen tree in the rainforest explodes into a kaleidoscope of exquisite new life, colour, and beauty.
Just one example of what's lost when we 'tidy' deadwood away from a natural ecosystem.
Leave it rot down for nature. 🌍
Just one example of what's lost when we 'tidy' deadwood away from a natural ecosystem.
Leave it rot down for nature. 🌍
January 2, 2026 at 6:49 AM
A dead, fallen tree in the rainforest explodes into a kaleidoscope of exquisite new life, colour, and beauty.
Just one example of what's lost when we 'tidy' deadwood away from a natural ecosystem.
Leave it rot down for nature. 🌍
Just one example of what's lost when we 'tidy' deadwood away from a natural ecosystem.
Leave it rot down for nature. 🌍
Arctic sea-ice extent in 2025 was record low in
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
January 1, 2026 at 11:42 AM
Arctic sea-ice extent in 2025 was record low in
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
The December 2025 record-low sea-ice extent in the Arctic is caused mainly by missing ice in the Atlantic sector
- Baffin Bay, Svalbard region and Barents Sea,
which all had record-low sea-ice cover in December.
- Baffin Bay, Svalbard region and Barents Sea,
which all had record-low sea-ice cover in December.
January 1, 2026 at 11:33 AM
The December 2025 record-low sea-ice extent in the Arctic is caused mainly by missing ice in the Atlantic sector
- Baffin Bay, Svalbard region and Barents Sea,
which all had record-low sea-ice cover in December.
- Baffin Bay, Svalbard region and Barents Sea,
which all had record-low sea-ice cover in December.
In December 2025, Arctic sea-ice extent reached a record low - a substantial decline from the previous record low in 2024.
January 1, 2026 at 11:26 AM
In December 2025, Arctic sea-ice extent reached a record low - a substantial decline from the previous record low in 2024.
Reposted by Signe Aaboe
As always, my last post of the year reminder...
Reducing emissions will reduce future climate warming and impacts. The time is now. Visualization made by globalcarbonbudget.org.
Thanks for being here in 2025! I appreciate all the support 🙂
Reducing emissions will reduce future climate warming and impacts. The time is now. Visualization made by globalcarbonbudget.org.
Thanks for being here in 2025! I appreciate all the support 🙂
January 1, 2026 at 1:07 AM
As always, my last post of the year reminder...
Reducing emissions will reduce future climate warming and impacts. The time is now. Visualization made by globalcarbonbudget.org.
Thanks for being here in 2025! I appreciate all the support 🙂
Reducing emissions will reduce future climate warming and impacts. The time is now. Visualization made by globalcarbonbudget.org.
Thanks for being here in 2025! I appreciate all the support 🙂
Reposted by Signe Aaboe
As we approach the end of the year, 2025 is on track to be one of the UK’s warmest years on record, joining 2022 and 2023 in the top three warmest years.
Find out more in our news release 👇
www.metoffice.gov.uk/about-us/new...
Find out more in our news release 👇
www.metoffice.gov.uk/about-us/new...
December 23, 2025 at 10:16 AM
As we approach the end of the year, 2025 is on track to be one of the UK’s warmest years on record, joining 2022 and 2023 in the top three warmest years.
Find out more in our news release 👇
www.metoffice.gov.uk/about-us/new...
Find out more in our news release 👇
www.metoffice.gov.uk/about-us/new...
Reposted by Signe Aaboe
Photographer, anthropologist Alegra Ally accompanied the Nenets seasonal migration, to show the lives of indigenous women in the Siberian Arctic #WomensArt
December 21, 2025 at 5:49 AM
Photographer, anthropologist Alegra Ally accompanied the Nenets seasonal migration, to show the lives of indigenous women in the Siberian Arctic #WomensArt
Reposted by Signe Aaboe
NCAR is quite literally our global mothership.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
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.
www.usatoday.com
December 17, 2025 at 2:59 AM
NCAR is quite literally our global mothership.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
Reposted by Signe Aaboe
The team behind Climate.us aims to provide the same kind of reliable, fresh content that used to be available via Climate.gov. We hope you’ll support us. #ClimateForUs
December 17, 2025 at 1:10 PM
The team behind Climate.us aims to provide the same kind of reliable, fresh content that used to be available via Climate.gov. We hope you’ll support us. #ClimateForUs
Reposted by Signe Aaboe
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 1:16 AM
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.
Reposted by Signe Aaboe
Soil health is the foundation of biodiversity, yet its degradation is an unpriced risk. NatureHelm helps translating complex data into verifiable intelligence for reporting.https://ap1.hubs.ly/y0nybn0
#SoilBiodiversity #BiodiversityData #NatureHelm
#SoilBiodiversity #BiodiversityData #NatureHelm
December 11, 2025 at 11:28 PM
Soil health is the foundation of biodiversity, yet its degradation is an unpriced risk. NatureHelm helps translating complex data into verifiable intelligence for reporting.https://ap1.hubs.ly/y0nybn0
#SoilBiodiversity #BiodiversityData #NatureHelm
#SoilBiodiversity #BiodiversityData #NatureHelm
Reposted by Signe Aaboe
Hvilket vær husker du fra 2025? 🤔
Under årets Klimastatus går vi gjennom viktige værhendelser og forklarer hvordan de kan knyttes til klimaendringene.
📍Røde Kors forteller om erfaringer med hetebølgen
📍Lede om konsekvensene etter Amy
Meld deg på og strøm direkte 👉 shorturl.at/Djfgg
Under årets Klimastatus går vi gjennom viktige værhendelser og forklarer hvordan de kan knyttes til klimaendringene.
📍Røde Kors forteller om erfaringer med hetebølgen
📍Lede om konsekvensene etter Amy
Meld deg på og strøm direkte 👉 shorturl.at/Djfgg
December 12, 2025 at 1:22 PM
Hvilket vær husker du fra 2025? 🤔
Under årets Klimastatus går vi gjennom viktige værhendelser og forklarer hvordan de kan knyttes til klimaendringene.
📍Røde Kors forteller om erfaringer med hetebølgen
📍Lede om konsekvensene etter Amy
Meld deg på og strøm direkte 👉 shorturl.at/Djfgg
Under årets Klimastatus går vi gjennom viktige værhendelser og forklarer hvordan de kan knyttes til klimaendringene.
📍Røde Kors forteller om erfaringer med hetebølgen
📍Lede om konsekvensene etter Amy
Meld deg på og strøm direkte 👉 shorturl.at/Djfgg