Contributor
- Powell, E. J.1
- Pratt, Will1
- Quinn, Connor1
- Rahway, N.J.1
- Rautenbach, W. L.1
- Recycle-A-Bicycle1
- Reid, Thomas1
- Retort (Collective)1
- Ricketts, James J.1
- Robeson County Green Map Project1
- Rochman, Paula1
- Rosa, Joseph1
- Rosa, Thomas1
- Ross, Carl1
- Roznowski, Martin1
- Sato, Arthur Hitoshi, b. 19341
- Sawatsky, Kristen1
- Schau, Larry1
- Schröder, Vibeke1
- Sherritt, J. K. H.1