Bangladesh and Bhutan

Ade travels through the stunning water world of Bangladesh's Ganges delta, before heading into the remote Himalayan Kingdom of Bhutan. The Bangladesh delta is stunning and lush - but it's also under threat from the increasingly extreme weather that climate change is causing. The cyclones rolling in from the Indian Ocean are an enormous problem for such a low-lying country: a quarter of Bangladesh is just a few feet above sea level. But Bangladesh is blessed with one of nature's greatest defences against the tidal surges caused by extreme weather: mangrove trees. Ade joins a government effort - racing against the tide - to plant huge new areas with mangroves. In Bhutan, Ade discovers how melting Himalayan glaciers are affecting the entire world. He also meets a yak herder and hears how hard life is getting for normal people there. But after speaking with the prime minister of Bhutan, Ade discovers how Bhutan isn't just carbon neutral, it's carbon negative. A BBC Production.