More iron on the seafloor means less oxygen in the ocean and atmosphere – or at least, that has long been a common assumption in the geosciences. However, a new study led by Prof. Florian Scholz from the University of Hamburg’s Earth and Society Research Hub (ESRAH) turns that idea on its head: in a key phase of our...

Social justice for climate-friendly urban traffic, predicting extreme heat in the Mediterranean, and AI in climate research – these are the topics of the final papers recognized with the Young Climate Scientists Award 2026. From among a host of high-caliber submissions from various disciplines, the jury ultimately selected...

How do we raise awareness of climate change and the biodiversity crisis when facts alone aren't enough? Four students from the Master's programme Integrated Climate System Sciences (ICSS) are testing a new approach: they want to evoke an emotional response to environmental protection. That is why they have launched a pop-up...

In the German sector of the western Baltic, cod and herring stocks have declined dramatically – to less than 10 percent of their size in the 1990s. The causes include climate change, overfishing and environmental stresses, e.g. from agricultural fertilizers. The effects can be felt in the region’s economy, culture, and...

The Arctic has been experiencing record wildfires for years. Lukas Fiedler, a researcher at the Earth and Society Research Hub (ESRAH) at the University of Hamburg, has now been able to demonstrate: the extreme fire years 2019 to 2021 can be attributed to human-caused climate change. His study was published in the...

Actually, it’s all pretty straightforward: the European Union has set itself the goal of becoming climate-neutral by 2055, while Germany wants to do so by 2045. Accordingly, it has ratified a Climate Change Act and corresponding regulations are in place. For example, greenhouse gases are to be gradually reduced and climate...