Climate Strike on Friday: HZB-Direktor welcomes engagement for climate protection

"I am convinced that we must act on climate change to prevent dramatic developments," says Bernd Rech. The technologies are available, and research is already working on further options. You can start the video by clicking the picture.

08:36

Audio: Speech Bernd Rech

08:36 (approx)

"I find it remarkable and encouraging that more and more citizens are joining the protests of the younger generation and calling for a turnaround for climate protection," says Prof. Bernd Rech, Scientific Director of the Helmholtz-Zentrum Berlin (HZB). In an open video message on the occasion of the worldwide climate day planned for Friday, he welcomes the fact that HZB staff members want to participate in the actions. At the same time he calls on people not to be afraid of technical changes. "The technologies for a climate-friendly energy supply are available. We must now use them quickly, but we must also improve them and create new options".

The science is clear, Bernd Rech states: Climate change is progressing and brings with it major risks - yet global greenhouse gas emissions continue to rise. There are solutions, but further research is also important: "We need much, much more renewable energies," says Rech, "because with green electricity we can also produce green hydrogen. And we will need hydrogen in a future CO2-neutral energy system".

Prof. Rech points out that research on this topic also comes from the HZB: "New solar cells are in the starting blocks - with new material combinations that are much more efficient than the previous ones. Here, the HZB holds world records and is working with partners on industrialisation".

In conclusion, Rech says: "The Corona crisis has shown us that we humans accept wise measures when they are justified and protect us. I am convinced that we now also have to act on climate change to prevent dramatic developments".

arö

  • Copy link

You might also be interested in

  • MXene for energy storage: More versatile than expected
    Science Highlight
    03.02.2026
    MXene for energy storage: More versatile than expected
    MXene materials are promising candidates for a new energy storage technology. However, the processes by which the charge storage takes place were not yet fully understood. A team at HZB has examined, for the first time, individual MXene flakes to explore these processes in detail. Using the in situ Scanning transmission X-ray microscope 'MYSTIIC' at BESSY II, the scientists mapped the chemical states of Titanium atoms on the MXene flake surfaces. The results revealed two distinct redox reactions, depending on the electrolyte. This lays the groundwork for understanding charge transfer processes at the nanoscale and provides a basis for future research aimed at optimising pseudocapacitive energy storage devices.
  • Compact electron accelerator for treating PFAS-contaminated water
    Science Highlight
    19.01.2026
    Compact electron accelerator for treating PFAS-contaminated water
    So-called forever chemicals or PFAS compounds are a growing environmental problem. An innovative approach to treating PFAS-contaminated water and soil now comes from accelerator physics: high-energy electrons can break down PFAS molecules into harmless components through a process called radiolysis. A recent study published in PLOS One shows that an accelerator developed at HZB, based on a SRF photoinjector, can provide the necessary electron beam.
  • Bright prospects for tin perovskite solar cells
    Science Highlight
    03.12.2025
    Bright prospects for tin perovskite solar cells
    Perovskite solar cells are widely regarded as the next generation photovoltaic technology. However, they are not yet stable enough in the long term for widespread commercial use. One reason for this is migrating ions, which cause degradation of the semiconducting material over time. A team from HZB and the University of Potsdam has now investigated the ion density in four different, widely used perovskite compounds and discovered significant differences. Tin perovskite semiconductors produced with an alternative solvent had a particular low ion density — only one tenth that of lead perovskite semiconductors. This suggests that tin-based perovskites could be used to make solar cells that are not only really environmentally friendly but also very stable.