The show Round Table takes place at the Lhalu Wetland National Nature Reserve, also known as the "Lungs of Lhasa." Birds are chirping, water is clear, locals are trekking along the paths, and the Potala Palace is beaming under the sun. But the Lhalu Wetland wasn't always like this. Join CGTN for a discussion on the preservation of the highest and largest urban natural wetland in China.