Great Barrier Reef: Can tech help the coral survive?

A file photo of fish in the Great Barrier Reef off the coast of Cairns, Australia

Australia’s Great Barrier Reef is the largest living structure on Earth measuring over 1,400 miles (2,300km) long.

But rising water temperatures and a changing environment is causing the coral to bleach (turn white) and become more stressed.

In March 2020 the reef suffered a third mass bleaching event in five years.

BBC Click’s Nick Kwek looks at how science and technology could help give the reef a greater chance of survival.

See more at

Click’s website and @BBCClick

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