Understanding climate
for the benefit of society

icon carbon climate


The processes that regulate the flows of carbon in the earth system on multiple timescales.


Research focus

  • How much of the human induced CO2 emissions are taken up by the ocean?
  • What are the consequences of the oceanic CO2 uptake in terms of ocean acidification?
  • What controls natural variations of the carbon cycle?
  • What do biogeochemical tracers tell us about water mass formation and ocean circulation?
  • What are the feedbacks between the climate system and biogeochemical processes in the ocean and on land?
  • How to include the marine sedimentary paleoclimate record in global ocean models?
  • How to include vegetation and soils in global climate models?


Keywords: carbon cycle, climate feedbacks, sustainability, glacial cycles, nutrients, oxygen.


Strategic projects


LOES,  Low and overshot emission scenarios – from a high to a low carbon society. Leaders: Jörg Schwinger and Hanna Lee.


Are Olsen – Karbonsystem, Carbon System



“The transformation to a low carbon society has to happen in the next ten years and insight into the carbon system is essential for this process”, says Are Olsen, leader of the Carbon System research theme.


“It is essential for defining the risks associated with the various possible emission pathways, for planning climate actions, and for evaluating their efficiency in reducing atmospheric CO2.


Our central goal is to provide this insight to society by developing and using the best possible models and observations.”

Carbon system research group


Research leader
Are Olsen

Jörg Schwinger


Medlemmer / Members


Inge Althuizen

Ali Aasadi

Meike  Becker

Timothée Bourgeois

Xabier Dávila

Tor de Lange

Dagmar Egelkraut

Filippa Fransner

Shuang Gao

Joseph Gaudard

Sonya Geange

Nadine Goris

Kjell Gundersen

Aud Halbritter

Bjarte Hannisdal

Siri Vatsø Haugum

Christoph Heinze

Solfrid Hjøllo

Kristin Jackson-Misje

Emil Jeansson

Truls Johannessen

Steve Jones

Augustin Kessler

Alexander Korablev

Tor Olav Kristensen

Camilla Landa

Siv Lauvset

Hanna Lee

Joshua Lynn

Anne Kari Meisingset

Lydia Messingfeld

Erik Askov Mousing

Pål Tore Mørkved

Ulysses Ninnemann

Abdirahman Omar

Gerrit Benjamin Pfeil

Nicholas  Roden

Richard Sanders

Margit Simon

Øystein Skagseth

Ingunn Skjelvan

Morten Skogen

Jerry Tjiputra

Marco van Hulten

Vigdis Vandvik

Tsuyoshi Wakamatsu

Çağlar Yumruktepe

The researchers at the Bjerknes Centre for Climate Research work with observations, theory and climate models. The researchs is organised in four thematic groups:

  • Global climate – led by Camille Li
  • Polar climate – led by Kerim Nisancioglu
  • The Carbon system – led by Are Olsen
  • Climate hazards – led by Nele Meckler