CLICCS : Climate, Climatic Change, and Society : University of Hamburg

News

The skyline of a harbor in the evening light, the sky is red-orange. A single chimney emits smoke, the clouds of smoke drift across the sky.

Photo: M. Piwnicki / unsplash

4 March 2025|Research

Climate expertise can make a difference – in varying doses

Federal climate protection measures aren’t currently sufficient to achieve our climate targets. Voluntary climate protection can help reduce CO2 emissions. But which options are really the most effective? A study involving experts from the University of Hamburg’s Cluster of Excellence for climate research CLICCS shows that...

Photo: Michael Waibel

27 February 2025|Research

Doing nothing now will cost us more later

The Hamburg Climate Futures Outlook 2024 shows how climate change adaptation can ultimately succeed: through meticulously thought-through measures that are simultaneously climate-friendly and socially just, and which are jointly developed with the public. Beate Ratter is a Professor of Geography and one of the study’s lead...

Photo: CEN Climate Visualization Laboratory

25 February 2025|Research

Weaker ocean circulation could cost trillions

A major motor for the global climate is beginning to falter: a massive system of ocean currents called the Atlantic Meridional Overturning Circulation (AMOC), which also includes the Gulf Stream. As a new study conducted by experts at the University of Hamburg’s Cluster of Excellence for climate research CLICCS and the Max...

Contribution from the university's newsroom

Zu sehen ist ein Satellitenbild eines Küstengebietes, welches von der Nasa aufgenommen wurde.

Photo: NASA/GSFC

11 February 2025|Research

Tides reduce marine CO2 uptake

The ocean absorbs massive amounts of CO₂ from the atmosphere, helping to slow climate change. Tides have a major impact on the mixing, distribution and storage of CO2 in water, as they influence water currents and stratification alike. A team led by Dr. Jan Kossack recently calculated the tides’ influence on carbon dioxide...

Giant mounts of sea ice in the Arctic region.

Photo: UniHH/CEN/T.Wasilewski

7 February 2025|Research

By 2100: An Arctic we’ll hardly recognize

The Arctic will change dramatically. If all nations meet the climate targets they’ve agreed to, the global mean temperature will rise by 2.7 degrees by the year 2100. In a study just released in the journal Science, Prof. Julienne Stroeve from the National Snow and Ice Data Center (NSIDC) in Colorado, Prof. Dirk Notz from...

Landscape shot from the Arctic tundra, showing a river meandering through a wide, flat plain. Bushes and individual trees are visible in red and yellow in the foreground. The background shows grassy plains and rolling hills under a sky with partly de

Photo: Meike Schickhoff/ MPI-M

19 December 2024|CLICCS News

The precarious future of permafrost

The Arctic is heating up particularly quickly as a result of global warming - with serious consequences. The soils in the northern permafrost region store twice as much carbon as is currently contained in the atmosphere. This carbon can escape as a result of thawing. Scientists from the Cluster of Excellence “Climate...

Archive of current news