Even Mr. Free Market™ himself, Milton Friedman, didn't have a problem with putting a price on pollution as it is a form of externality:
* https://www.youtube.com/watch?v=0YGfwSvLkC0&t=1m34s
Greenspan, Volcker, Bernanke, Yellen, etc, also endorsed a price on carbon (which revenue would be refunded to people):
* https://clcouncil.org/economists-statement/