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Originally Posted by jimjamuser
There we go back to "millions of years ago".....to which someone twists my arm and I say "so what?" I am talking - the last 15 years - of increased population, big time - and the resulting EXTRA production of CO2 than the earth and the oceans can handle Sure, I believe that all of Florida is built on layers of dead coral. You can see the color of the sand that all the building taking place uses - it is yellow, not pure white. Now, here I admit to just guessing, I GUESS that color would mean coral, but I would NOT be terribly upset if someone knows otherwise. The extra CO2 in the ocean causes acid bleaching of the coral. It is a scientific agreement that world coral will be reduced to 5% around 2080 (look it up). What is reducing coral - extra acid in the water from extra CO2. What else could it be? People ripping off pieces of coral to take home? Coral catching Covid? What is causing the icebergs to melt around the world (and rapidly)? Is it a change of Mars orbit? Or is it the rapid increase of earth population?
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Not quite. Florida is primarily built up on hundreds of feet of layers of limestone, which was laid down during many cycles of seas rising and lowering. Coral reefs of course lined the shorelines. Like humans, corals live and die. Like human graveyards, corals die too -- and they build upon the dead reefs -- just like humans build cities on top of ancient cities. PS ... the seas were 20 to 25 feet higher during the prior Interglacial Warm Period when temperatures were about 8 C warmer than today. We are cold compared to the prior cycle.