
The Atmosphere and Climate Competence Center (ACCC)
We are working to address two of the most urgent global Grand Challenges: climate change and deteriorating air quality.

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.
Our work consists of three Research Programs and one Impact Program, which translates research into practical impact through stakeholder collaboration.

News
- The annual ACCC-FASN science conference 2026
The annual ACCC-FASN science conference 2026 will take place in… Read more: The annual ACCC-FASN science conference 2026 - Meet HIKET at COP31!
The HIKET consortium, formed by the University of Helsinki, the… Read more: Meet HIKET at COP31! - CLIMATE SECURITY FESTIVAL 2026 | REGISTRATION IS OPEN
16–17 November 2026Finnish Meteorological Institute, Dynamicum, Helsinki We warmly invite… Read more: CLIMATE SECURITY FESTIVAL 2026 | REGISTRATION IS OPEN
Podcasts
- Pienhiukkaset, päästöt ja puhdas ilma – mitä tiede kertoo hengittämästämme ilmasta?
Kuuntele jakso Spotifysta. Ilmasto 2075 -podcastin jaksossa perehdytään aerosolifysiikan ja… Read more: Pienhiukkaset, päästöt ja puhdas ilma – mitä tiede kertoo hengittämästämme ilmasta? - Kaupungit ilmastoriskien polttopisteessä
Kuuntele jakso Spotifysta. Ilmasto 2075 -podcastin jaksossa perehdytään kaupunki-ilmaston ja… Read more: Kaupungit ilmastoriskien polttopisteessä - Miten pilviä tutkitaan ja miten ne liittyvät ilmastonmuutokseen
Kuuntele jakso Spotifysta. Ilmasto 2075 -podcastin jaksossa sukelletaan ilmakehätieteen ytimeen… Read more: Miten pilviä tutkitaan ja miten ne liittyvät ilmastonmuutokseen

Research Programs

Quantifying and activating the potential of land-based climate change mitigation
is working to improve 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.

Impact Program
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.

Join our mailing list to receive ACCC updates and invitations to events and seminars
Contact us
acccflagship@helsinki.fi
ACCC Host Organisations





















