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.
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