Supporting carbon pricing is good.

Winning a Tesla while doing so is even better.

And that's the chance being offered by ClimateXChange. The Cambridge-based nonprofit is holding a raffle to bolster its efforts "to provide policymakers and advocates with cutting edge information on market-based solutions to climate change."

The group's principal focus is putting a price on carbon, also known as "making polluters pay," recognized as an enormously effective means of fighting climate change.

For your $250 entry, you'll be in the running to win a Tesla Model S sedan or Model X SUV - your choice. It's a zero-emission electric vehicle valued at up to $120,000. The contest will also cover the prize's federal income tax, which can run as high as $40,000. Total possible value: $160,000.

You can accept $100,000 in cash, if that's your preference. There are also five substantial prizes for runners-up. Find all details here.

Entries must be made by July 4.

This is a rare chance to do good and drive better.

--By Shoshanna Levy