UN team examines mining threat to Great Barrier Reef
6 March 2012 Last updated at 17:20 GMT
A UN team has arrived in Australia to investigate possible damage to the Great Barrier Reef by the mining industry.
Fears that coal exports and oil and gas exploration would jeopardise the reef prompted the Unesco delegation's visit.
Environmentalists have urged the government to suspend mining development until a government review is completed.
Duncan Kennedy reports.