Autores
- Ricardo von Muhlenbrock
- Ricardo Westin
- Riccardo Carraro
- Riccardo Petrella
- Richard Black
- Richard Domingues Dulley
- Richard Fernández Chávez
- Richard Heinberg
- Richard Intriago Barreno
- Richard Intriago Barreno y Laura Saura Gargallo
- Richard Levins
- Richard Lough y Dominique Vidalon
- Richard Schiffman
- Richard Smith
- Rights Action
- Rights Action, Salva la Selva, Biofuelwatch y Food First
- Rigoberto Escobar
- Rilma Román y Marlen Sánchez
- Rinde Cuentas
- Río Doce
- Río Negro
- Ríos Libres documental
- Riquieli Capitani
- RISAPRET-CYTED
- Rishi Iyengar
- Rising Tide - América del Norte
- Rita Jill Clark-Gollub, Erika Takeo y Avery Raimondo
- Rita Segato
- Ritu Primlani - Thimmakka's Resources for Environmental Education
- Ritu Singh - Diverse Women for Diversity
- RLACS
- RLN
- RNMA
- RNMA - Mar del Plata
- RNMA-Radio Nacional de Medios Alternativos
- ROAM
- Roar Magazine y Debbie Bookchin
- Rob Jordan
- Rob Sawers
- Robert Araujo
- Robert Bryce
- Robert G. Wallace
- Robert Rolón
- Robert Schubert
- Roberta Jansen
- Roberta Lopes
- Roberta Pennafort
- Roberta Quintino
- Roberta Traspadini
- Roberto Afanador Cobaria - Asociación U'wa