| Similarity | Rank | |
|---|---|---|
| biofuel | 0.971 | 33305 |
| cellulosic | 0.868 | 66673 |
| feedstocks | 0.867 | 76964 |
| biodiesel | 0.855 | 28801 |
| renewable | 0.848 | 6153 |
| fuels | 0.845 | 9417 |
| Biofuels | 0.838 | 67613 |
| feedstock | 0.830 | 46681 |
| fossil-fuel | 0.826 | 91442 |
| ethanol | 0.821 | 14555 |
| bioenergy | 0.820 | 65798 |
| renewables | 0.817 | 27442 |
| biomass | 0.804 | 16091 |
| biochar | 0.790 | 81934 |
| carbon-based | 0.753 | 97409 |
| petroleum-based | 0.752 | 79740 |
| energy-intensive | 0.751 | 95480 |
| gasification | 0.748 | 64900 |
| energy-related | 0.745 | 86604 |
| low-carbon | 0.744 | 41607 |
| biogas | 0.740 | 44510 |
| non-renewable | 0.735 | 56124 |
| cogeneration | 0.734 | 76666 |
| fuel | 0.734 | 1992 |
| emissions | 0.729 | 4569 |