saving from speed limit enforcement at 70 mph increasing to a 2.8 MtCO The CCC (2010) estimates a 1.3 MtCO 2 savings if speed limits were reduced to 60 mph.
saving from speed limit enforcement at 70 mph increasing to a 2.8 MtCO The CCC (2010) estimates a 1.3 MtCO2 savings if speed limits were reduced to 60 mph.