Meg Lowman is a pioneering biologist, botanist and conservationist who has devoted more than forty years towards researching the hidden ecosystems of the world's forest canopies. In this episode of Nature Revisited, Meg talks about her new book The Arbornaut - a blend of memoir and fieldwork account. As in her book, Meg's discussion launches us into the life and work of a field scientist, offering insights and plans for action. Despite devastation across the world, through trees, we can still make an immediate and lasting impact against climate change.