The Seychelles is an island chain in the Indian Ocean which is threatened by rising sea levels and the destruction of marine life. But the low-lying nation is enacting policies that it hopes will set an example to others.
A new report by the World Economic Forum says global risk perceptions are shifting. While in previous years economic problems were deemed the biggest threats to mankind, fears of a climate breakdown are now dominating.
As sea levels rise and oceans become warmer, the consequences will hit us all. But some, like Knud Knudsen, a man who walks through the Wadden Sea to deliver the mail, are better placed to notice the shifting tides.
As sea levels rise, the planet's natural bulwarks against the ocean could help protect the coastline. But these very habitats are also under threat.
Some five kilometers from mainland Germany, 10 patches of marshland known as the Hallig islands are at risk from rising sea levels. Regular flooding could help them survive.
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