CO2 emissions, cycling and the Hornby Bike Lane
In the ten years leading up to 2009 Copenhagen reduced CO2 emissions by 20% ( 40% since 1990 ). During that time the cycling modal share increased by over 19% and the amount of "cycle tracks" (segregated bike lanes) increased by over 9%. Copenhagen found that adding cycle tracks to a road section resulted in a 20% increase in cycling.