| Author | Popularity |
| Batstone, Roger, 1940- |
3 |
| Smith, James E., 1941- |
3 |
| United Nations. Environment Programme |
3 |
| Wilson, David, 1952- |
3 |
| World Bank |
3 |
| World Health Organization |
3 |
| Amy E. Latimer-Cheung |
2 |
| Andy Barrow |
2 |
| Audrey L. Hicks |
2 |
| Brett M. Smith |
2 |
| Chris Bourne |
2 |
| Christof Leicht |
2 |
| Christopher B. McBride |
2 |
| Christopher R. West |
2 |
| Dalton L. Wolfe |
2 |
| David S. Ditor |
2 |
| Dot Tussler |
2 |
| James H. Rimmer |
2 |
| Jan Lexell |
2 |
| John Steeves |
2 |
| Karen M. Smith |
2 |
| Kathleen A. Martin Ginis |
2 |
| Keith C. Hayes |
2 |
| Marco Bernardi |
2 |
| Patricia J. Manns |
2 |
| Peter Carruthers |
2 |
| Pierre Pomerleau |
2 |
| Robert B. Shaw |
2 |
| Sonja Gaudet |
2 |
| Sonja de Groot |
2 |
| Steven Macaluso |
2 |
| Vanessa K. Noonan |
2 |
| Vicky Goosey-Tolfrey |
2 |
| A Fukui |
1 |
| A John Blacker |
1 |
| Adam W Hurt |
1 |
| Adrian M. Price-Whelan |
1 |
| Alastair Baker |
1 |
| Alastair G.C. Graham |
1 |
| Albright, Lewis E. |
1 |
| Alex Hughes |
1 |
| Alexander R. Simms |
1 |
| Alexandra E. Witus |
1 |
| Alexandra L. Post |
1 |
| Alia Gurtov |
1 |
| Alice C. Smith |
1 |
| Allyson Bieryla |
1 |
| Amy Leventer |
1 |
| Andrew C. Smith |
1 |
| Andrew Mackintosh |
1 |