Portrait of the Austrian biologist and underwater explorer who pioneered our understanding of the oceans

In October 2024 an extraordinary discovery was made in the South Pacific: The largest coral ever found on earth. 

Hotter than ever, more and more tropical fish, the ecosystem on the brink of collapse: what can be done? Silvia is looking for solutions.

On board the FS Meteor a team of German researchers spend five weeks at sea studying the unknown depths of the Atllantic Ocean.

Sometimes the simplest images can really bring home the full measure of a catastrophe.

The vast capital of Indonesia, home to 31 million people is sinkingand could be entirely underwater by 2050.

Bangladesh is on the frontline of climate change, a low-lying nation affected by both coastal and river flooding. Predictions for 2050 are alarming: Two thirds of the country could be underwater, making refugees of 40 million people.