Climate change modifies the composition of reefs

Corals devastated by climate change are being replaced naturally by other species such as gorgonians, which are less efficient in acting as a carbon sink. A study has analyzes for the first time why gorgonians are more resistant than corals to human impacts and global climate change.

In pictures: Millions mark World Cleanup Day 2018

Cleanups were organised in 152 countries around the world, with results from just 75 countries on Saturday night already confirming the participation of more than 14.5 million people. Full results of the day, including the amount of waste collected, were set to be released on Sunday.