Bjerknes Center for Climate Research (BCCR)
@bjerknes.uib.no
Understanding climate for the benefit of society. BCCR is a collaboration on climate research between the University of Bergen, NORCE, The Norwegian Institute of Marine Research and Nansen Environmental and Remote Sensing Center.
💡 A new Nordic report highlights the potential impacts of AMOC tipping and calls for stronger mitigation, monitoring and preparedness.
The report reviews the current state of science on the impacts of a potential AMOC collapse 🧪🌊
pub.norden.org/temanord2026...
The report reviews the current state of science on the impacts of a potential AMOC collapse 🧪🌊
pub.norden.org/temanord2026...
A Nordic Perspective on AMOC Tipping
This report is the outcome of the Nordic Council of Minister’s sponsored workshop arranged in October 21-24, 2025 in Helsinki and Rovaniemi, Finland as part of Finland’s council presidency theme resil...
pub.norden.org
February 5, 2026 at 11:32 AM
💡 A new Nordic report highlights the potential impacts of AMOC tipping and calls for stronger mitigation, monitoring and preparedness.
The report reviews the current state of science on the impacts of a potential AMOC collapse 🧪🌊
pub.norden.org/temanord2026...
The report reviews the current state of science on the impacts of a potential AMOC collapse 🧪🌊
pub.norden.org/temanord2026...
What if farmers had seen it coming?
The 2018 drought in Norway starkly highlighted the sector’s vulnerability to climate risks. This study investigates the potential benefits of extended-range forecasts, which were not available to farmers during the drought.🧪
www.sciencedirect.com/science/arti...
The 2018 drought in Norway starkly highlighted the sector’s vulnerability to climate risks. This study investigates the potential benefits of extended-range forecasts, which were not available to farmers during the drought.🧪
www.sciencedirect.com/science/arti...
What if farmers had seen it coming? The retrospective potential of extended-range forecasts in managing the 2018 drought in Norwegian agriculture
Climate variability and extreme weather events pose substantial challenges to global agriculture, threatening food security and self-sufficiency. In N…
www.sciencedirect.com
January 29, 2026 at 1:11 PM
What if farmers had seen it coming?
The 2018 drought in Norway starkly highlighted the sector’s vulnerability to climate risks. This study investigates the potential benefits of extended-range forecasts, which were not available to farmers during the drought.🧪
www.sciencedirect.com/science/arti...
The 2018 drought in Norway starkly highlighted the sector’s vulnerability to climate risks. This study investigates the potential benefits of extended-range forecasts, which were not available to farmers during the drought.🧪
www.sciencedirect.com/science/arti...
Sea ice is a crucial component of the climate system. In this study, they use several high‑resolution methods to reconstruct past sea ice conditions from an Arctic sediment core.
They aim to improve understanding of how sea ice has changed over time 🧪🌊
www.sciencedirect.com/science/arti...
They aim to improve understanding of how sea ice has changed over time 🧪🌊
www.sciencedirect.com/science/arti...
First-year sea ice history in the Arctic Ocean inferred from ancient DNA of Polerella glacialis over the past 50,000 years
www.sciencedirect.com
January 26, 2026 at 12:29 PM
Sea ice is a crucial component of the climate system. In this study, they use several high‑resolution methods to reconstruct past sea ice conditions from an Arctic sediment core.
They aim to improve understanding of how sea ice has changed over time 🧪🌊
www.sciencedirect.com/science/arti...
They aim to improve understanding of how sea ice has changed over time 🧪🌊
www.sciencedirect.com/science/arti...
Oxygen is essential to marine life, but the amount of oxygen in the ocean has been decreasing in recent decades. This decrease is underestimated in numerical ocean models by as much as 50 %. 🧪🌊
os.copernicus.org/articles/22/...
os.copernicus.org/articles/22/...
Remineralisation changes dominate oxygen variability in the North Atlantic
Abstract. Oxygen is fundamental to ocean biogeochemical processes, with deoxygenation potentially reducing biodiversity, and disrupting biogeochemical cycles. In recent decades, the global ocean oxyge...
os.copernicus.org
January 22, 2026 at 10:09 AM
Oxygen is essential to marine life, but the amount of oxygen in the ocean has been decreasing in recent decades. This decrease is underestimated in numerical ocean models by as much as 50 %. 🧪🌊
os.copernicus.org/articles/22/...
os.copernicus.org/articles/22/...
The Greenland ice sheet is melting at an accelerating rate due to the warming climate. In order to understand the potentially important ice-climate feedback processes, evolving ice sheets need to be included in global climate models. 🧪🌊
esd.copernicus.org/articles/17/...
esd.copernicus.org/articles/17/...
Limited global effect of climate-Greenland ice sheet coupling in NorESM2 under a high-emission scenario
Abstract. The Greenland ice sheet is melting at an accelerating rate due to the warming climate. In order to understand the potentially important ice-climate feedback processes, evolving ice sheets ne...
esd.copernicus.org
January 15, 2026 at 11:42 AM
The Greenland ice sheet is melting at an accelerating rate due to the warming climate. In order to understand the potentially important ice-climate feedback processes, evolving ice sheets need to be included in global climate models. 🧪🌊
esd.copernicus.org/articles/17/...
esd.copernicus.org/articles/17/...
"If you don’t show the potential, people will not see the possibility of taking action." @stefansobo.bsky.social from Bjerknes and @unibergen.bsky.social argues for also showing best case scenarios. bjerknes.uib.no/en/news/avgj...
Cities are essential for climate
The majority of the world's population lives in cities. Providing cities with solutions to handle climate change improves both the global environment and…
bjerknes.uib.no
January 13, 2026 at 2:15 PM
"If you don’t show the potential, people will not see the possibility of taking action." @stefansobo.bsky.social from Bjerknes and @unibergen.bsky.social argues for also showing best case scenarios. bjerknes.uib.no/en/news/avgj...
For the first time, scientist discovered that the large up-and-downs in oxygen isotopes of the mid Oligocene were primarily driven by large temperature changes in the abyssal ocean and not, as previously assumed, to enormous changes in ice volume in Antarctica. 3/3
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Oligocene deep ocean oxygen isotope variations primarily driven by temperature - Nature Geoscience
Large benthic oxygen isotope fluctuations in the Oligocene Southern Ocean primarily represent deep water temperature changes, suggesting the Antarctic ice sheet volume was relatively stable, according to a clumped isotope record.
www.nature.com
January 7, 2026 at 10:14 AM
For the first time, scientist discovered that the large up-and-downs in oxygen isotopes of the mid Oligocene were primarily driven by large temperature changes in the abyssal ocean and not, as previously assumed, to enormous changes in ice volume in Antarctica. 3/3
www.nature.com/articles/s41...
www.nature.com/articles/s41...
⚠️ However, one problem with the method is that it is not always easy to disentangle from the signal the contribution of temperature and that of ice volume. 2/3
January 7, 2026 at 10:14 AM
⚠️ However, one problem with the method is that it is not always easy to disentangle from the signal the contribution of temperature and that of ice volume. 2/3
By measuring the proportion of the heavy oxygen isotope in deep ocean marine calcite, scientist can understand climate variability in the geological past.
This is measured on the fossil shells of microscopic organisms that have lived on the ocean floor for hundreds of millions of years ago. 🧪🌊 1/3
This is measured on the fossil shells of microscopic organisms that have lived on the ocean floor for hundreds of millions of years ago. 🧪🌊 1/3
January 7, 2026 at 10:14 AM
By measuring the proportion of the heavy oxygen isotope in deep ocean marine calcite, scientist can understand climate variability in the geological past.
This is measured on the fossil shells of microscopic organisms that have lived on the ocean floor for hundreds of millions of years ago. 🧪🌊 1/3
This is measured on the fossil shells of microscopic organisms that have lived on the ocean floor for hundreds of millions of years ago. 🧪🌊 1/3
Find the open access publication here: os.copernicus.org/articles/21/...
os.copernicus.org
December 19, 2025 at 12:33 PM
Find the open access publication here: os.copernicus.org/articles/21/...
🌊 With two years of observations from the Disko Bay in Greenland, Linda Latuta et.al are out with a new publication - a milestone in the highly interdisciplinary 🧪Climate Narratives-project.
All photos: @islarsh.bsky.social
All photos: @islarsh.bsky.social
December 19, 2025 at 12:30 PM
🌊 With two years of observations from the Disko Bay in Greenland, Linda Latuta et.al are out with a new publication - a milestone in the highly interdisciplinary 🧪Climate Narratives-project.
All photos: @islarsh.bsky.social
All photos: @islarsh.bsky.social
When El Niño strikes in the Pacific Ocean, you might not expect fishermen off the coast of Senegal or Brazil to feel its effects. But they do, and in ways that are both surprising and complex, according to a new paper. 🧪 🌊
bjerknes.uib.no/en/news/nar-...
bjerknes.uib.no/en/news/nar-...
When Pacific Weather Shakes Atlantic Fisheries
How El Niño and La Niña reach across the globe to impact fish populations thousands of kilometres away
bjerknes.uib.no
December 18, 2025 at 11:00 AM
When El Niño strikes in the Pacific Ocean, you might not expect fishermen off the coast of Senegal or Brazil to feel its effects. But they do, and in ways that are both surprising and complex, according to a new paper. 🧪 🌊
bjerknes.uib.no/en/news/nar-...
bjerknes.uib.no/en/news/nar-...
Shifting climates formed early human behavior. Congratulations to our new PhD, Karl Purcell who defended his thesis, "Reconstructions of southern South Africa hydroclimate during the last glacial cycle, and potential linkages to human behavioural development", at @unibergen.bsky.social today! 🧪
December 15, 2025 at 2:11 PM
Shifting climates formed early human behavior. Congratulations to our new PhD, Karl Purcell who defended his thesis, "Reconstructions of southern South Africa hydroclimate during the last glacial cycle, and potential linkages to human behavioural development", at @unibergen.bsky.social today! 🧪
Lake sediments tell of past floods. Congratulations to our new PhD, Johannes Hardeng, who successfully defended his thesis, "Floods and avalanches in a changing climate" at @unibergen.bsky.social today! @josteinba.bsky.social
December 10, 2025 at 3:24 PM
Lake sediments tell of past floods. Congratulations to our new PhD, Johannes Hardeng, who successfully defended his thesis, "Floods and avalanches in a changing climate" at @unibergen.bsky.social today! @josteinba.bsky.social
Barents Sea temperature and zooplankton explain variations in the cod population, new study from @unibergen.bsky.social, the Institute of Marine Research and the Bjerknes Centre shows. 🧪🌊 bjerknes.uib.no/en/news/skre...
The cod has followed the thermometer
In recent decades the cod stock in the Barents Sea has gone up and down with the ocean temperature. Future development depends on more than the water.
bjerknes.uib.no
December 9, 2025 at 3:24 PM
Barents Sea temperature and zooplankton explain variations in the cod population, new study from @unibergen.bsky.social, the Institute of Marine Research and the Bjerknes Centre shows. 🧪🌊 bjerknes.uib.no/en/news/skre...
🌊 A recent study on freshwater sources in the global ocean.
🧪 @xabidavila.bsky.social and colleagues used a machine learning method to better understand how freshwater from rain and river runoff and from melting sea ice spreads through the ocean.
Full story👇
bjerknes.uib.no/en/news/look...
🧪 @xabidavila.bsky.social and colleagues used a machine learning method to better understand how freshwater from rain and river runoff and from melting sea ice spreads through the ocean.
Full story👇
bjerknes.uib.no/en/news/look...
Looking at freshwater in a new way
Freshwater is quietly reshaping the oceans — and with it, the climate. A new study has looked at how rain, river runoff, and melting sea ice spread…
bjerknes.uib.no
December 9, 2025 at 12:24 PM
🌊 A recent study on freshwater sources in the global ocean.
🧪 @xabidavila.bsky.social and colleagues used a machine learning method to better understand how freshwater from rain and river runoff and from melting sea ice spreads through the ocean.
Full story👇
bjerknes.uib.no/en/news/look...
🧪 @xabidavila.bsky.social and colleagues used a machine learning method to better understand how freshwater from rain and river runoff and from melting sea ice spreads through the ocean.
Full story👇
bjerknes.uib.no/en/news/look...
Reposted by Bjerknes Center for Climate Research (BCCR)
Jules Pretty’s ..story.. on how our stories shape and empower societies, akso in dark times, is highly recommended! #ClimateAction #NaturePositive #IPCC #IPBES Thanks to @ymalhi.bsky.social @naturerecovery.bsky.social for sharing this inspireing seminar! naturerecovery.ox.ac.uk/news/stories...
Stories for Nature Recovery: Finding Hope in the Dark Times
Yadvinder Malhi reflects on Jules Pretty's Nature Seminar Series lecture
naturerecovery.ox.ac.uk
December 6, 2025 at 8:11 AM
Jules Pretty’s ..story.. on how our stories shape and empower societies, akso in dark times, is highly recommended! #ClimateAction #NaturePositive #IPCC #IPBES Thanks to @ymalhi.bsky.social @naturerecovery.bsky.social for sharing this inspireing seminar! naturerecovery.ox.ac.uk/news/stories...
In the Arctic record temperatures and early spring have led to melting ice, glaciers and permafrost, among other things. Climate change happens faster here than any other place in the world. This makes it extremely important to observe greenhouse gas fluxes.🧪🌊❄️
www.norceresearch.no/en/news/if-y...
www.norceresearch.no/en/news/if-y...
If you want to understand climate change, look to Svalbard - Norce
Arctic experiences the highest increase in temperatures in the World. Therefore, climate researchers want to increase observation of greenhouse gas fluxes in the Northern regions of Norway.
www.norceresearch.no
December 4, 2025 at 10:59 AM
In the Arctic record temperatures and early spring have led to melting ice, glaciers and permafrost, among other things. Climate change happens faster here than any other place in the world. This makes it extremely important to observe greenhouse gas fluxes.🧪🌊❄️
www.norceresearch.no/en/news/if-y...
www.norceresearch.no/en/news/if-y...
Including past climate improves projections of the Greenland ice sheet in the future. Congratulations to our new PhD, Charlotte Rahlves from NORCE, who defended her thesis at @unibergen.bsky.social today! 🧪
December 3, 2025 at 3:09 PM
Including past climate improves projections of the Greenland ice sheet in the future. Congratulations to our new PhD, Charlotte Rahlves from NORCE, who defended her thesis at @unibergen.bsky.social today! 🧪
Reposted by Bjerknes Center for Climate Research (BCCR)
I'll have to pass this year sadly, but I joined 2 years ago and that was one of the best meeting I've ever attended! Sea ice from breakfast to dinner (and see nice people, also)
13th International Workshop on Sea Ice Modelling, Assimilation, Observations, Predictions, and Verification
9 – 11 June 2026, Copenhagen, Denmark
Hosted by the Danish Meteorological Institute
iicwgda2026copenhagen.wordpress.com
9 – 11 June 2026, Copenhagen, Denmark
Hosted by the Danish Meteorological Institute
iicwgda2026copenhagen.wordpress.com
(no title)
iicwgda2026copenhagen.wordpress.com
November 26, 2025 at 6:46 PM
I'll have to pass this year sadly, but I joined 2 years ago and that was one of the best meeting I've ever attended! Sea ice from breakfast to dinner (and see nice people, also)
Deep water formation in the southern Weddell Sea is an important part of the climate system. But this production is threatened by increased transportation of warm water into the area. A new study highlights how storms can be an important driver for southward heat transport. 🧪🌊
The effect of storms on the Antarctic Slope Current and the warm inflow onto the southeastern Weddell Sea continental shelf
Abstract. Storms have been suggested to drive enhanced southward transport of modified Warm Deep Water (mWDW) towards the Filchner Ice Front in the southern Weddell Sea. This region is a known locatio...
os.copernicus.org
November 24, 2025 at 10:34 AM
Deep water formation in the southern Weddell Sea is an important part of the climate system. But this production is threatened by increased transportation of warm water into the area. A new study highlights how storms can be an important driver for southward heat transport. 🧪🌊
Ecosystem gas fluxes are crucial to water and energy cycling. Fluxes are measured in closed-loop chambers. But how do you deal with the data? An R package by @jogaudard.bsky.social from @unibergen.bsky.social and Bjerknes simplifies processing and comparison. Check it out! 🧪 doi.org/10.1111/2041...
November 17, 2025 at 2:13 PM
Ecosystem gas fluxes are crucial to water and energy cycling. Fluxes are measured in closed-loop chambers. But how do you deal with the data? An R package by @jogaudard.bsky.social from @unibergen.bsky.social and Bjerknes simplifies processing and comparison. Check it out! 🧪 doi.org/10.1111/2041...
Reposted by Bjerknes Center for Climate Research (BCCR)
Currently a large outbreak of cold, Arctic air is making its way south over the Norwegian Sea. The amazing mesh structure (called open-cell convection) in the satellite image (coloured image) is really hard for weather forecast models (grey image) to get 'right' @bjerknes.uib.no #ISOSCAN_project
November 14, 2025 at 3:07 PM
Currently a large outbreak of cold, Arctic air is making its way south over the Norwegian Sea. The amazing mesh structure (called open-cell convection) in the satellite image (coloured image) is really hard for weather forecast models (grey image) to get 'right' @bjerknes.uib.no #ISOSCAN_project
Venning, M. & Bushaka, B. (2024) Co-ordinating agricultural adaptation: Seasonal forecasts and their influence on rural agricultural rythms in Ethiopia.
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
November 14, 2025 at 2:45 PM
Venning, M. & Bushaka, B. (2024) Co-ordinating agricultural adaptation: Seasonal forecasts and their influence on rural agricultural rythms in Ethiopia.
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
Two of his publication on climate services are available online:
Venning et al. (2025) Mapping the demand, development, and delivery of climate services in the Greater Horn of Africa.
wires.onlinelibrary.wiley.com/doi/10.1002/...
Venning et al. (2025) Mapping the demand, development, and delivery of climate services in the Greater Horn of Africa.
wires.onlinelibrary.wiley.com/doi/10.1002/...
Mapping the Demand, Development, and Delivery of Climate Services in the Greater Horn of Africa
The fragmented and hasty development and delivery of climate services across the Greater Horn of Africa since 2009, largely detached from actual demand, has significant implications for their usabili...
wires.onlinelibrary.wiley.com
November 14, 2025 at 2:45 PM
Two of his publication on climate services are available online:
Venning et al. (2025) Mapping the demand, development, and delivery of climate services in the Greater Horn of Africa.
wires.onlinelibrary.wiley.com/doi/10.1002/...
Venning et al. (2025) Mapping the demand, development, and delivery of climate services in the Greater Horn of Africa.
wires.onlinelibrary.wiley.com/doi/10.1002/...