THE first of David Attenborough's three part documentary on the Great Barrier Reef will be screened on Australian TVs this month.
The first look at the series in Australia will be on April 10 on ABC.
While it's been dubbed as a great opportunity for a tourism boom, it's also expected to show the bleak reality of the reef's health.
The reef's most pristine section in the north, now has been 95% wbleached according to the survey undertaken by the National Coral Bleaching Taskforce.
Speaking at a screening of his documentary in London, Mr Attenborough said it was time to take action.
"It's a very serious threat that the reef is facing,"
"The issue is going to be rather quicker than the next generation or so. The issue is, in fact, the changes of the ocean and the speed at which the planet is changing.
"Within the next 10-20 years that issue will be real. It's real now but it will be imminent unless we manage to control the warming of the planet to within two degrees," he said.
The three part series was filmed in 2013.
It is screened just weeks before Tourism Australia launches a major push to promote Australia's coastal and aquatic experiences.
Find out more about his work at the Great Barrier Reef on this interactive website.