Experts are continuing to sound the alarm, saying that unless urgent action is taken, this generation will see the death of the Great Barrier Reef—often called the largest living structure on earth. Officials say it's happening to reefs all over the world and that things will need to get better, fast, to turn things around.

For more on this, KCBS Radio's Eric Thomas was joined by Brad Linsley, Research professor at the Lamont-Doherty Earth Observatory at Columbia University, his research focuses on using coral and other marine sediments to document ocean climate conditions. 

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