Newslink: This undersea robot just delivered 100,000 baby corals to the Great Barrier Reef
With oceans growing warmer and more acidic as a result of climate change, the world’s coral reefs are under siege. Recent research shows that the number of coral bleaching events has risen drastically in recent years, and in 2016 and 2017 about half of the coral making up Australia’s Great Barrier Reef died off.