Could techno-fixes and gene therapies really save the world’s coral?

A team of scientists and reef managers say it's time to consider 'riskier' and unconventional ways to save the world's coral habitats.

As the metaphorical canary in the global warming coalmine goes, the planet's coral reefs are hard to beat.

Swathes of corals in all tropical basins have been hit by the longest mass bleaching event yet recorded that kicked off in 2014 and ended, at least officially, in June.