Over the next few decades tens of millions of people will be affected by flooding due to rising sea levels . It has been seen during numerous hurricanes and typhoons that coastal ecosystems can protect the land and the people that live on it from stormy seas . Indeed, coral reefs reduce the height of waves by 70% on average, and reduce the energy of the waves by 97% . In comparison, salt marshes reduce wave height by 72%, seagrass or kelp beds by 36%, and mangroves by 31% . Coral reefs are particularly important because they exist in very exposed areas where waves are big, making the potential damage from storms worse [1,2].
Unfortunately, we are expected to lose 70-90% of coral reefs if we reach 1.5°C of global warming, or over 99% with 2°C of warming . Doing all we can to protect and restore coral reefs  and other ecosystems  would provide huge benefits for society in terms of protection from storms, in addition to multiple other benefits like tourism and saving wildlife [1,2].
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