| 100% | GUZZLERS | 8 | Gas-___ (cars that are bad for the environment) |
| 64% | CFC | 3 | Emission that's bad for the environment (abbr.) |
| 57% | STRAW | 5 | Building material that was no problem for the Big Bad Wolf |
| 55% | ECO | 3 | ___-friendly (not bad for the environment) |
| 55% | ANGOLA | 6 | Luanda's country that was the host nation for the World Environment Day in 2016 |
| 55% | CANADA | 6 | Ottawa's country that was the host nation for the World Environment Day in 2017 |
| 54% | INDIA | 5 | New Delhi's country that was the host nation for the World Environment Day in 2018 |
| 53% | IDES | 4 | Mid-March day that was bad for Caesar |
| 53% | EVS | 3 | Cars that are charged, for short |
| 53% | ECO | 3 | Prefix suggesting something isn't bad for the environment |
| 53% | IDES | 4 | Mid-March day that was bad for Julius Caesar |
| 53% | THEHABIT | 8 | Kick __, give something up that is bad for you |
| 52% | LEMONS | 6 | Cars that are in the shop a lot |
| 51% | GTO | 3 | Car that was modified into the Monkeemobile |
| 50% | GTO | 3 | Car that was the subject of a 1964 top 10 hit |
| 50% | CORVETTE | 8 | One of the most iconic American sports cars from Chevrolet, that has been in production for seven generations |
| 50% | SILT | 4 | Material that's bad for the mouth? |
| 49% | EVS | 3 | Cars that don't use gas, for short |
| 49% | LIMO | 4 | Car that might be rented for prom night |
| 49% | DAYTON | 6 | City that was home for the Wright brothers |
| 49% | NESTS | 5 | Homes that are for the birds |
| 48% | GTOS | 4 | Classic cars that were the first to have Ram Air engines |
| 48% | CABRIOLET | 9 | Car that can be driven with the roof down |
| 48% | IAMACAMERA | 10 | Play that was the basis for "Cabaret" |
| 48% | BEAN | 4 | Seed that is the source for 20a |
| 48% | JAG | 3 | Luxury British car that is also a large cat species, for short |
| 47% | LETTUCE | 7 | Vegetable that is the base for many salads |
| 47% | AMETHYST | 8 | Purple quartz that is the birthstone for February |
| 47% | AIRBAG | 6 | Car safety feature that can be unsafe for kids in the front seat |
| 47% | HAIM | 4 | Band that was nominated for the 2015 Best New Artist Grammy |