Telegraph: The Wildlife Conservation Society deployed marine biologists to Aceh province, on the tip of Sumatra island, in May, when surface waters in the Andaman Sea peaked at 93F (34C) — a 7F (4C) rise over long-term averages. The teams discovered massive bleaching, which occurs when algae living inside coral tissues are expelled. Subsequent surveys carried out together with Australia’s James Cook University and Indonesia’s Syiah Kuala University showed 80 per cent of those corals have since …