The 27th Conference of the Parties (COP 27) to the United Nations Framework Conven­tion on Climate Change (UNFCCC) in Sharm el-Sheikh, Egypt, was marked by multiple crises and the shaken confidence of developing countries in the multilateral process. Nonetheless, an agreement was reached on the...

Climate change is leading to increasing displacement and migration, as well as involuntary immobility. The associated challenges and costs have long been neglected in the international climate negotiations. Until now, efforts to open up mobility choices for people negatively affected by climate...

If the EU wants to achieve net zero emissions by 2050, enacting conventional climate change mitigation measures to avoid emissions of greenhouse gases will not be enough. To compensate for unavoidable residual emissions, unconventional measures to remove CO2 from the atmosphere will also be...

The European Union (EU) has been advocating climate policy ambitions from the very beginning of the international climate regime. Climate action to support the implementation of the Paris Agreement (2015) involves nearly all fields of national and international policy-making. In this research...

At the Paris climate summit in December 2015 the 196 parties to the United Nations Framework Convention on Climate Change (UNFCCC) established a new international climate policy regime from 2020 onwards. The Paris Agreement includes how to proceed with protecting the climate (mitigation), how to...

Since net zero targets have become a keystone of climate policy, more thought is being given to actively removing carbon dioxide from the atmosphere while continuing to drastically reduce emissions. The ocean plays a major role in regulating the global climate by absorbing a large proportion of...

Plurilateral initiatives are again gaining importance in climate diplomacy as a complement to multilateral efforts – not least in view of the lack of progress in implementing the Paris Agreement and more difficult conditions in the UN process. New alliances are expected to facilitate agreement...

With the publication of its Synthesis Report in March 2023, the Intergovernmental Panel on Climate Change (IPCC) has completed its work programme for the sixth assess­ment cycle. The IPCC reports, and in particular the respective Summary for Policy Makers (SPM), provide a scientific basis for...

Climate policy in the European Union (EU) and Germany changed significantly with the adoption of net-zero emissions targets. A key new development is the growing importance of carbon management. The umbrella term includes not only the capture and storage of CO2 (carbon capture and storage, CCS),...