Reuters: Corals under threat from acid seas can only be saved by deep cuts in carbon dioxide emissions, scientists said on Wednesday, and engineering the chemistry of sea water around coral reefs was only possible on a very small scale.
In a U.S.-led study, scientists mixed chemicals into a lagoon, cut off from the sea at low tide, at Australia's One Tree Island to locally reverse the global trend of acidification that makes it harder for corals to build their stony skeletons.
They showed that the coral,...