| list of environmental issues today | 1.7 | 0.1 | 7604 | 34 | 34 |
| list of environmental problems | 0.04 | 0.6 | 2385 | 30 | 97 |
| biggest environmental issues today | 0.97 | 1 | 7279 | 34 | 30 |
| what are current environmental issues | 0.25 | 0.8 | 9761 | 37 | 56 |
| latest on environmental issues | 1.17 | 0.7 | 439 | 30 | 60 |
| current environmental issues news | 1.71 | 1 | 419 | 33 | 37 |
| what are the top environmental issues | 1.86 | 0.6 | 1887 | 37 | 3 |
| major current environmental problems | 1.93 | 0.5 | 3481 | 36 | 9 |
| list of environmental problems and solutions | 0.11 | 0.3 | 3525 | 44 | 5 |
| list of environmental problems in canada | 1.59 | 0.6 | 2119 | 40 | 81 |
| environmental health problems list | 0.98 | 0.9 | 4213 | 34 | 75 |
| list some environmental problems | 0.58 | 0.8 | 2579 | 32 | 21 |
| psychosocial and environmental problems list | 0.62 | 0.9 | 2044 | 44 | 64 |
| list five environmental problems | 0.37 | 0.7 | 282 | 32 | 49 |
