Can therapy treat climate anxiety?

"I was enjoying a life that was ruining the world." In our increasingly sanitised, artificial world, it's easy to forget the depth, colour, character and variety of nature that we've replaced with dead grey nothingness. But what happens when we begin to understand the cost of our actions? Moya Sarner meets with various individuals from across the UK to explore the phenomenon of climate change anxiety and pathways they have taken towards a more sustainable way of life.