| Clue | Source | Date |
|---|---|---|
| 80% of contraband affected by charge imposed on business (6,3) | ||
| Element of environmental economics | LA Times Daily | 15 Jul 2023 |
| Charge meant to reduce emissions | USA Today | 19 Nov 2022 |
| Ecological levy | ||
| Ecological levy | LA Times Daily | 14 Apr 2021 |
| Factor in environmental economics | Newsday | 06 Nov 2020 |
| Duty paid by hood in America burning new energy on his chopper? | The Telegraph Toughie | 11 Dec 2019 |
| Levy on fossil fuels | ||
| Duty for a plant, maybe |