High-resolution satellite images have revealed the "rapid deforestation" of Papua New Guinea's biodiversity rich rainforests over the past 30 years.An international team of researchers estimates that the current rate of loss could result in more than half of the nation's tree cover being lost by 2021.
They added that the main threats came from commercial logging and burning.
Existing conservation measures were failing to protect the world's third largest rainforest, the team concluded.
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