| Similarity | Rank | |
|---|---|---|
| biofuels | 0.971 | 26111 |
| biodiesel | 0.904 | 28801 |
| cellulosic | 0.864 | 66673 |
| feedstocks | 0.857 | 76964 |
| feedstock | 0.844 | 46681 |
| ethanol | 0.835 | 14555 |
| renewable | 0.823 | 6153 |
| fuels | 0.819 | 9417 |
| biomass | 0.815 | 16091 |
| Biofuels | 0.811 | 67613 |
| fossil-fuel | 0.799 | 91442 |
| bioenergy | 0.789 | 65798 |
| biochar | 0.786 | 81934 |
| biogas | 0.774 | 44510 |
| gasification | 0.772 | 64900 |
| renewables | 0.767 | 27442 |
| Biodiesel | 0.761 | 63631 |
| fuel | 0.761 | 1992 |
| cogeneration | 0.752 | 76666 |
| petroleum-based | 0.748 | 79740 |
| emissions | 0.736 | 4569 |
| energy-intensive | 0.734 | 95480 |
| carbon-based | 0.731 | 97409 |
| greenhouse | 0.727 | 8346 |
| coal-fired | 0.725 | 36383 |