One expert says she is ‘starting to visualise the point where all we have left of corals and reefs is memories’Sign up for climate and environment editor Adam Morton’s free Clear Air newsletter hereAlmost two out of three corals across popular tourism spots at the world heritage-listed Ningaloo reef died after an unprecedented marine heatwave hit the Western Australia region, scientists have said.The areas in Ningaloo’s northern lagoon had undergone a “profound ecological simplification” with coral species that were keystones to the habitat among those killed. Continue reading…