Quote:
Originally Posted by fdpaq0580
Go to NOAA and search "what is killing the oceans coral" if you would like to learn rather than just debate with your misinformation and red herrings (polar bears? Really?)
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All these cause bleaching: Temperatures (too high and too low), Sunlight (too much and too little), salinity (too much and too little), pH (too high and too low), and others like too much fresh water, silt, and other chemicals. Bleaching is a temporary absence of algae which are ejected by the corals depending on water conditions -- and after which they wait for other algae to float by which better accommodate current conditions. If they can't find new algae after a length of time (depending on conditions) then the corals die -- adding to the already growing bedrock of reefs -- until new corals start growing again after conditions and algae availability changes. This is their life cycle -- it is normal -- and warmer waters and more CO2 are both beneficial to coral growth -- it is in the historic fossil record.