A number of companies from the US and China plan to build networks of several thousand satellites each to enable access to the Internet from any point on Earth. These satellites will be stationed in low Earth orbit. If these plans are put into practice, the global Internet infrastructure will...

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...

The proportion of affected populations who flee violent conflict is much smaller than is widely assumed. Many decide to remain in the conflict zones. They are often referred to as stayees. Three groups can be identified. Some people stay voluntarily. Others do so involuntarily, for example...

The transition to a hydrogen-based economy is gaining momentum in both Germany and the European Union (EU). Used as an energy carrier, hydrogen holds the promise of freeing hard-to-decarbonise sectors like heavy industry, aviation, and maritime trade from their emissions. At the same time,...