Increasingly frequent severe coral bleaching is among the greatest threats to coral reefs posed by
climate change. Emissions scenario RCP4.5 represents lower emissions mid-century than will eventuate if pledges made following the 2015 Paris Climate Change Conference (COP21) become reality.
![Paris Agreement Coral Reefs](https://healthyreefs.org/wp-content/uploads/2017/01/Paris-Agreement-Coral-Reefs-300x105.png)