| Similarity | Rank | |
|---|---|---|
| overfishing | 0.872 | 60336 |
| sustainably | 0.867 | 73006 |
| reforest | 0.866 | 69812 |
| reafforestation | 0.863 | 67737 |
| over-grazing | 0.857 | 73877 |
| afforestation | 0.857 | 25942 |
| old-growth | 0.854 | 59583 |
| reforestation | 0.853 | 43916 |
| over-exploitation | 0.850 | 57939 |
| siltation | 0.849 | 76239 |
| crop-growing | 0.844 | 85589 |
| salination | 0.842 | 86940 |
| pantanal | 0.840 | 88557 |
| semi-natural | 0.838 | 56740 |
| eutrophication | 0.833 | 42648 |
| hydroelectricity | 0.832 | 85682 |
| reseeding | 0.832 | 65057 |
| environmentally-sensitive | 0.828 | 88048 |
| chena | 0.827 | 85444 |
| overgrazing | 0.827 | 43790 |
| rangeland | 0.823 | 74004 |
| overgrazed | 0.820 | 82229 |
| bioga | 0.820 | 50706 |
| biogeochemical | 0.820 | 71552 |
| above-ground | 0.820 | 56220 |