Plastic has a rather dirty reputation these days. There are few places on land or underwater where you won’t find discarded plastic waste causing harm and havoc. Thomas Chhoa has spent his life in the petro-chemical industry creating plastic, and he still believes this is a wonder-material and overall a force for good in the world. Now a Senior Advisor with the Alliance to End Plastic Waste, he is working at the highest levels to develop a circular plastics economy, and argues we need to return to the principles of reduce, reuse, recycle - on steroids.

Thomas is a man of deep faith, moral fibre and intelligence and his message is both realistically sober and hopeful.

Peter Harris founded A Rocha in the early 1980s and has given his life since to the cause of nature conservation. He has long known the vital importance of the question of how and why to value nature. In this conversation with Rick and Jo (his daughter!) he explores the different explanations he has encountered for the worth of the non-human world and why he believes money lies at the heart of it all.

Verónica is a transplant to the USA from Argentina. As a plant molecular and cellular biologist and a plant lover, she soon began getting to know the fora of her new home, discovering the extent to which native plants were suffering as invasives flourished. As Texas Conservation Project Director for A Rocha USA, she now spends much of her time killing Glossy Privet in many ingenious ways, and as a result the Bull Creek Watershed is full of diverse life again. We talked to her about the nitty gritty of caring for an ecosystem, how she has been reengaging the local hispanic community with the great outdoors and what it took to put down roots in new soil.