It’s not really comparable because the pollution was being generated as a byproduct of a presumably useful service or industry. This puts polluters under a reg

It’s not really comparable because the pollution was being generated as a byproduct of a presumably useful service or industry. This puts polluters under a regulatory limit that didn’t exist before, gives the time to adjust while also providing an early incentive to decarbonise sooner rather than later (they can sell the credits they didn’t need to use).