Depends on the fuel. With hydrogen powered rockets a la shuttle main engines, yes. Most of the recent pushes have been kerosene or methane fueled, though. But

Depends on the fuel. With hydrogen powered rockets a la shuttle main engines, yes. Most of the recent pushes have been kerosene or methane fueled, though. But in the scheme of things, it's really not worth complaining about them vs. our enormous vehicle fleets.