Wildlife cameraman on climate change

Toby Strong, a wild-life cameraman, tells us how climate change is affecting places he's visited and the people he's met.

Also in the programme: A memorial service in Switzerland marking the disappearance of an alpine glacier due to global warming.

Plus, the Hong Kong bookseller detained by China, opens a book store in Taiwan after his release.

(Image: Cameraman, Toby Strong, filming on location. Credit: BBC)