Quote:
Originally Posted by golfing eagles
Really????? They've plotted out the acidity of the oceans for every 200 year span out of the last 50 million????? Quite an accomplishment. You do realize that is 250,000 spans of 200 years-----I'd love to see that data chart. So, no matter who made that statement, it is plainly idiotic
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Actually. I imagine they know the ocean acidity levels back 50 Million years because they did core samples of ancient coral reefs. When reading the Smithsonian article I found out that living coral form rings just like ancient redwood trees do. I assume from that and core samples they can date the rings and come to the conclusion back to 50 Million years. And I enjoyed learning that !