| political animals and animal politics(expression, environment, publication, book, journal) |
| population bomb(expression, environment, publication, book, journal) |
| prosperity without growth(expression, environment, publication, book, journal) |
| real global warming disaster(expression, environment, publication, book, journal) |
| red sky at morning(expression, environment, publication, book, journal) |
| renewable and sustainable energy reviews(expression, environment, energy, publication, journal) |
| renewable energy-published by elsevier(expression, environment, energy, publication, journal) |
| requiem for a species(expression, environment, publication, book, journal) |
| revenge of gaia(expression, environment, publication, book, journal) |
| review of environmental economics and policy(expression, environment, publication, economics, journal) |
| sacred balance(expression, environment, publication, book, journal) |
| sand county almanac(expression, environment, publication, book, journal) |
| secrets and lies(expression, environment, publication, book, journal) |
| short history of progress(expression, environment, publication, book, journal) |
| silence of the songbirds(expression, environment, publication, book, journal) |
| silent spring(expression, environment, publication, book, journal) |
| skeptical environmentalist(expression, environment, publication, book, journal) |
| solar energy(expression, environment, energy, publication, journal) |
| solar energy materials and solar cells(expression, environment, energy, publication, journal) |
| state of the world(expression, environment, publication, book, journal) |