| Similarity | Rank | |
|---|---|---|
| conservationist | 0.846 | 64014 |
| activist | 0.796 | 9331 |
| campaigner | 0.782 | 41112 |
| environmentalists | 0.777 | 24900 |
| environmentalism | 0.767 | 50542 |
| ecologist | 0.748 | 60532 |
| McKibben | 0.737 | 85113 |
| maverick | 0.706 | 45211 |
| outspoken | 0.696 | 23449 |
| conservationists | 0.692 | 46481 |
| Environmentalists | 0.685 | 69122 |
| self-described | 0.680 | 44954 |
| advocate | 0.674 | 5905 |
| libertarian | 0.674 | 24277 |
| Greenpeace | 0.671 | 30799 |
| climate-change | 0.666 | 93307 |
| idealist | 0.666 | 57333 |
| skeptic | 0.665 | 35827 |
| proponent | 0.663 | 25853 |
| self-professed | 0.662 | 87303 |
| ideologue | 0.661 | 87225 |
| atheist | 0.660 | 17928 |
| firebrand | 0.659 | 90431 |
| critic | 0.655 | 11890 |
| scientist | 0.654 | 7615 |