Indian eco-activist Vandana Shiva discusses the Chipko protest of 1730 when 363 Bishnoi people in Rajasthan were massacred for protecting a forest of sacred Khejri trees. Show more
Botanist Sandy Knapp considers 19th-century naturalist Alfred Russel Wallace's surprisingly radical views about our relationship with nature. Show more
Curt Meine considers the ideas of outdoorsman, forester and philosopher Aldo Leopold, whose book A Sand County Almanac became a classic in American nature writing. Show more
Richard Mabey explores the role of 19th-century poet John Clare in bringing the beauty and fragility of the natural environment to wider public attention. Show more
Donald Worster discusses the life of John Muir, a Scot who emigrated to the US in the 19th century and became a strong advocate for the American wilderness. Show more