| Similarity | Rank | |
|---|---|---|
| Fuels | 0.873 | 48822 |
| Biodiesel | 0.858 | 63631 |
| Biomass | 0.852 | 50798 |
| biofuels | 0.838 | 26111 |
| Ethanol | 0.835 | 51076 |
| Renewable | 0.825 | 19768 |
| biofuel | 0.811 | 33305 |
| Renewables | 0.791 | 55257 |
| biodiesel | 0.752 | 28801 |
| Agribusiness | 0.740 | 89933 |
| cellulosic | 0.735 | 66673 |
| Sustainable | 0.733 | 11223 |
| Emissions | 0.730 | 37744 |
| Cleantech | 0.729 | 79165 |
| renewable | 0.729 | 6153 |
| Energy | 0.728 | 2769 |
| feedstocks | 0.727 | 76964 |
| fuels | 0.719 | 9417 |
| Methane | 0.717 | 69623 |
| Commercialization | 0.715 | 83230 |
| bioenergy | 0.713 | 65798 |
| Energy's | 0.711 | 41046 |
| Biotechnology | 0.704 | 34873 |
| biomass | 0.703 | 16091 |
| Geothermal | 0.702 | 51004 |