Bicycling and Walking Benchmarking Report 2012: Bicycling is on the Rise - The Bicycling and Walking in the United States: 2012 Benchmarking Report shows that bicycling is getting more popular as a method of transportation; the number of commuters who bicycle to work increased by 57% from 2000 to 2009.
California orders hike in number of super clean cars - California, long a national leader in cutting auto pollution, pushed the envelope further Friday as state regulators approved rules to cut greenhouse gas emissions from cars and put significantly more pollution-free vehicles on the road in coming years.
