Birth Chart and Horoscope of Sustainability advocates
- Albert Allen Bartlett
- Allan Yeomans
- Amory Lovins
- Anubhav Wadhwa
- Anupam Mishra
- Auguste Soesastro
- Barbara Kingsolver
- Cameron Sinclair
- Carl-A. Fechner
- Claudia Kemfert
- Danielle Nierenberg
- Darren Kimura
- David Randall Hertz
- David Wolfe (raw food advocate)
- Desmond Tutu
- Dorjee Sun
- E.O. Wilson
- Earl Bakken
- Ed Nijpels
- Eric Corey Freed
- Garrett Hardin
- Gayle Brandeis
- George Monbiot
- Hans Rudolf Herren
- Hartmut Bossel
- Herbert Girardet
- James Dehlsen
- James Gustave Speth
- James Hansen
- James Lovelock
- Jason Lewis (adventurer)
- Jean-Michel Cousteau
- Jeremy Rifkin
- Jigar Shah
- Joachim Luther
- Joel Makower
- John B. Cobb
- John Call Cook
- John Holdren
- John Passmore
- John Vincent (restaurateur)
- Jon Bowermaster
- Jon Entine
- Jonathon Porritt
- Jules Boykoff
- Julia Butterfly Hill
- Kenneth Hsu
- Laurens Jan Brinkhorst
- Laury Haytayan
- Linda Reinstein
- Luc Gnacadja
- Mark Satin
- Martin Kaltschmitt
- Masanobu Fukuoka
- Mitchell Joachim
- Mohamed Nasheed
- Nate Morris
- Nathan Myhrvold
- Noam Chomsky
- Patrick Whitefield
- Paul Hawken
- Paul Laffoley
- Paul Watson
- Paul J. Crutzen
- Paul R. Ehrlich
- Pete Bethune
- Peter Gabriel
- Peter H. Kostmayer
- Peter Jon Pearce
- Peter Joseph
- Phil Radford
- Pieter Winsemius
- Pope John Paul II
- Preben Maegaard
- Prince of Wales Charles
- René Castro
- Richard Lamm
- Richard Tol
- Robert Ayres (scientist)
- Robert Costanza
- Robert Jungk
- Sallie W. Chisholm
- Sombath Somphone
- Starhawk
- Stephen Schneider
- Steve Reiss
- Steven Chu
- Steven R. Galster
- Sunny Sanwar
- T. Boone Pickens
- Tetsunari Iida
- Thomas H. Stoner Jr.
- Tim Flannery
- Todd Stern
- Tom Dinwoodie
- Tracey Johnston-Aldworth
- Tristram Stuart
- Tsering Dolma Gyaltong
- Van Jones
- Walter R. Stahel
- Wes Jackson
- Will Steger
- William McDonough
- Wubbo Ockels
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More categories: April 1 births, New Zealand people of Irish descent, Nova Scotia Oilers players, Bosnia and Herzegovina expatriate footballers, South American Championships in Athletics winners, Swedish ten-pin bowling players, Australian people of Hong Kong descent, People educated at Missouri Military Academy, Permanent Representatives of Estonia to NATO, Brazilian expatriates in Indonesia