Region
- Great Britain 2 results
- New Zealand 2 results
- Pacific Area 2 results
- Berlin 1 results
- California 1 results
- China 1 results
- Developing countries 1 results
- East Asia 1 results
- Germany 1 results
- Hawaii 1 results
- India 1 results
- Italy 1 results
- Los Angeles 1 results
- New York 1 results
- New York (State) 1 results
- Ontario 1 results
- San Pedro River Watershed (Mexico and Ariz.) 1 results
- Singapore 1 results
- Sudan 1 results
- Temagami, Lake, Region 1 results