Scientists 'find way to fight coral bleaching'

Scientists in Australia say they have found a way to help coral reefs fight the devastating effects of bleaching by making them more heat-resistant.

Rising sea temperatures make corals expel tiny algae which live inside them. This turns the corals white and effectively starves them.

In response, researchers have developed a lab-grown strain of microalgae which is more tolerant to heat.

When injected back into the coral, the algae can handle warmer water better.