The Solomon Islands World Heritage area of East Rennell has been inscribed on a list of endangered sites by UNESCO because of the effect of logging on the island's ecosystem.
The UNESCO World Heritage Committee says the inscription is designed to inform the international community of the threat to the area and encourage corrective action.
The Committee has asked the Solomon Islands government to provide an impact assesment study on the logging activity in the area to develop a plan to save the heritage area.
East Rennell is the world's largest raised coral atoll and UNESCO says its dense forest canopy is considered to be a natural laboratory for scientific study.
