Detailed text transcripts for TV channel - CNN - 20180910:06:47:00
Acidity in the water. the corals are brought to the tanks and placed under varying conditions. >> so, this is a many, many individual animals living together as one. so each individual here on the screen is one animal, one mouth of the animal. >> reporter: then they're examined under a microscope to see how they react. the lessons help governments and scientists to help reef that cannot protect itself. pollution monitors and controlled with the reef's survival in mind. here we are standing in four miles of four different countries. we're standing in israel. that's egypt behind me. jordan in fr...