Read here. Without doing any empirical research, radical green groups (Greenpeace, etc.) claim that coral reefs will die off due to increased warming of ocean coastal waters. Actual scientists say that is wrong.
Bauman et al. published a peer-reviewed study regarding corals in the southern Persian Gulf area, which found corals to be hardy and resilient to extreme temperature fluctuations. Their research confirms what other coral studies have found:
"...three researchers report that the reproductive biology of the six coral species in the southern Persian Gulf "appears to be well adapted to extreme annual environmental fluctuations" and is "remarkably similar to conspecifics elsewhere in the Indo-Pacific (Baird et al., 2009a,b),"...say their work "confirms that corals are capable of reproductive activities under extreme environmental conditions," as has also been found to be the case by Coles and Fadlallah (1991) and Coles and Brown (2003). Hence, they state that "coral populations can survive and proliferate in extreme conditions that are projected to occur in many other regions of the world by the end of this century," buttressing their claim with the statement that "the recovery of these coral assemblages following mortality induced by a number of recent temperature-related bleaching events (1996, 1998 and 2002) suggests these assemblages are also resilient to extreme fluctuations in water temperature,"" [A. G. Bauman, A. H. Baird, G. H. Cavalcante 2011: Coral Reefs]