Five of the Solomon Islands in the Pacific have already been lost to sea level rise. Meet the people on the front line of climate change: http://bbc.in/2pgLJmW | BBC Radio 4

This is what happened when Four Corners tried to film a Chinese business in Solomon Islands. Despite filming from a public area, Chinese security physically blocked our cameras and told the crew not to return. Four Corners was one of the first international film crews to arrive in Solomon Islands when borders reopened earlier this month, and our investigation reveals how Chinese money is buying influence in the region. | Four Corners