The last episode deals with the future of conservation. It begins by looking at previous efforts. The 'Save The Whales' campaign, which started in the 1960s, is seen to have had a limited effect, as whaling continues and fish stocks also decline.
The picturesque Lake Constance region is characterized by intensive agriculture - with dramatic results for the bird life. Since 2003, the ornithologist Professor Peter Berthold has been creating new habitats for birds - alongside cultivated landscapes.
A crew of women embarked on an ambitious sailing expedition around the UK to raise awareness of ocean plastic and sample the water to see what damage is being done. Hannah Thomas-Peter joined them on the month-long voyage and documented their voyage of discovery.
2017 • Environment
In the forested depths of eastern Congo lies Virunga National Park, one of the most bio-diverse places in the world and home to the last of the mountain gorillas. In this wild, but enchanted environment, a small and embattled team of park rangers - including an ex-child soldier turned ranger, a carer of orphan gorillas and a Belgian conservationist - protect this UNESCO world heritage site from armed militia, poachers and the dark forces struggling to control Congo's rich natural resources. When the newly formed M23 rebel group declares war in May 2012, a new conflict threatens the lives and stability of everyone and everything they've worked so hard to protect.
2014 • Environment