"...Human activity seemed nothing when set against the sea itself.
Just a few weeks later, on an uninhabited island in a remote part of the Red Sea, I was proved wrong. The shore above the tide line was covered with old light bulbs, apparently tossed from the endless parade of ships over the years.
About 40 percent of ocean areas are strongly affected, and just 4 percent pristine, according to the review.
The most widespread human fingerprint is a slow drop in the pH of surface waters around the world as a portion of the billions of tons of carbon dioxide added to the atmosphere from fuel and forest burning each year is absorbed in water, where it forms carbonic acid.
“I study this stuff all the time and didn’t expect the impacts to be as pervasive as we found,” Dr. Halpern said. " LINK
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