- Think green, by Andrew Thomson and Gillian Bartlett, Episode 22
- Elements, by Nick Farrow, Episode 23
- Green matters, by Nick Farrow, Episode 2
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 20
- Tipping point for planet earth, how close are we to the edge?, Anthony D. Barnosky and Elizabeth A. Hadly
- Green matters, by Nick Farrow, Episode 14
- Nature in the round;, a guide to environmental science., Edited by Nigel Calder
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 12
- Climate savvy, adapting conservation and resource management to a changing world, Lara J. Hansen and Jennifer R. Hoffman
- Elements, by Nick Farrow, Episode 15
- Green matters, by Nick Farrow, Episode 18
- Green matters, by Nick Farrow, Episode 16
- North America, a continental overview of environmental issues, Kevin Hillstrom, Laurie Collier Hillstrom
- Dodging extinction, power, food, money and the future of life on Earth, Anthony D. Barnosky
- Green matters, by Nick Farrow, Episode 11
- Oil, water and climate, an introduction, Catherine Gautier
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 26
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 33
- Nature Inc, [directed by] Robert Gould ; [produced by] Dev TV, Episode 14
- Green matters, by Nick Farrow, Episode 12
- Rescuing the planet, protecting half the land to heal the earth, Tony Hiss ; introduction by E.O. Wilson
- Elements, by Nick Farrow, Episode 1
- Elements, by Nick Farrow, Episode 8
- Green matters, by Nick Farrow, Episode 7
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 35
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 16
- Man and nature., Edited by David Lowenthal
- Green matters, by Nick Farrow, Episode 4
- The atlas of global conservation, changes, challenges and opportunities to make a difference, Jonathan Hoekstra ... [et al.] ; edited by Jennifer L. Molnar
- Extracted, how the quest for mineral wealth is plundering the planet : a report to the Club of Rome, Ugo Bardi ; foreword by Jorgen Randers
- Extinction, the causes and consequences of the disappearance of species, Paul and Anne Ehrlich
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 10
- Conservation from chaos?, by Rob Gould
- The world's water, volume 7, the biennial report on freshwater resources, Peter H. Gleick ; with Lucy Allen [and others]
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 38
- Green matters, by Nick Farrow, Episode 23
- Elements, by Nick Farrow, Episode 13
- Elements, by Nick Farrow, Episode 16
- Latin America and the Caribbean, a continental overview of environmental issues, Kevin Hillstrom, Laurie Collier Hillstrom
- Towards the sustainable management of forests, by Jean Bourbonnais
- Visionaries, by Jean Bourbonnais
- Elements, by Nick Farrow, Episode 9
- Green matters, by Nick Farrow, Episode 19
- America the vanishing;, rural life and the price of progress,, edited by Samuel R. Ogden. Illustrated with nineteenth-century engravings and twentieth-century photos. by David Plowden
- Elements, by Nick Farrow, Episode 11
- The power of sustainable thinking, how to create a positive future for the climate, the planet, your organization and your life, Bob Doppelt
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 31
- Green matters, by Nick Farrow, Episode 20
- Think green, by Andrew Thomson and Gillian Bartlett, Episode 21
- Natural resource conflicts, from blood diamonds to rainforest destruction, M. Troy Burnett, editor