China says Beijing-controlled Scarborough Shoal has 'excellent' environmental quality

China has released a report claiming that the area around the Scarborough Shoal -- which it controls -- has "excellent" environmental quality. This comes amid months of escalating tensions with the Philippines in the disputed South China Sea. China seized the shoal in 2012, following a standoff with the Philippines. Sovereignty of islands in the area has not been determined by an international court. Earlier this week, China had released another report highlighting environmental degradation in another area of the contested waters, putting the blame on the Philippines. Olivia Siong reports.