The Atmosphere and Climate Competence Center (ACCC)

is a Finnish Flagship constituted by the University of Helsinki, Tampere University, University of Eastern Finland and the Finnish Meteorological Institute. We are working to address two of the most urgent global Grand Challenges: climate change and deteriorating air quality. From deep scientific understanding to practical solutions.

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  Remember to sign-up for ACCC Impact Week 2026!March 31, 2026
  u’re invited to ACCC Impact Week 2026, a free conference… Read more: Remember to sign-up for ACCC Impact Week 2026!
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  Latest Measurement Campaign of the GIANT Project Revealed the Influence of Outdoor Air Quality on Indoor AirMarch 30, 2026
  Measurements conducted in real built environments are at the core… Read more: Latest Measurement Campaign of the GIANT Project Revealed the Influence of Outdoor Air Quality on Indoor Air
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  Ilmanlaatu on heikentynyt paikoitellen itärajan tuntumassaMarch 27, 2026
  Etelä-Karjalassa on mitattu kohonneita pienhiukkaspitoisuuksia tänään ja eilen. Itärajan takaa… Read more: Ilmanlaatu on heikentynyt paikoitellen itärajan tuntumassa

ACCC Research Programs

The ACCC Research Programs serve as the framework for ACCC collaborations with multistakeholder partners to deliver knoweldge-based actions and solutions through its Impact Tasks.

Quantifying and activating the potential of land-based climate change mitigation

is working to improved estimates and verification of greenhouse gas (GHG) sources and sinks in terrestrial ecosystems and their feedbacks to radiative budget.

Quantifying the air quality – climate interactions and their impacts

studies the origins and impacts of air pollution with diverse approaches and from different perspectives.

Climate change impacts and adaptation

focuses on studying how climate change affects societies and how societies can adapt to climate change.

ACCC Impact tasks

There are currently 40 partners involved in the ACCC Flagship cooperation. The cooperation seeks to predict and verify the effects of climate action on practical business life, sustainable investment and the transformation of different sectors. The collaboration partners representing the policy making sectors, private sector and other stakeholders are in close interaction with the research programs and participate in the impact programs.

Safe Climate. Clean Air.

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