Cutting emissions from US automobiles will be critical to any strategy for slowing global warming. America’s adoption of hybrids, fully electric vehicles and fuel efficient small cars are also crucial to the transition to a low carbon economy. According to an Environmental Defence study, Global Warming on the Road (pdf), US automobiles and light trucks are responsible for nearly half of all greenhouse gases emitted by automobiles globally.

See the rest here:
American Consumers and Greener Vehicles

More on SKCEA.org:

• This is what mountaintop-removal mining looks like
  by Jess Zimmerman. This series of photographs from NASA's Landsat 5 satellite, taken over 26 years from 1984 to 2010, shows the toll mountaintop-removal mining takes on a landscape. You can watch the bombed-out area expand, and see that the "restored" scars never look quite ...
• What ‘left’ and ‘right’ really mean on climate change (hint: nothing)
  By David...
• High corn prices impact crop rotations
  Farmer Brian Schaumburg has planted corn for five straight years in some of the thousands of acres he tends in central Illinois. Farmers who eschew crop rotations that help to replenish the soil with nutrients take a risk that yields will decline. But corn prices soared to a reco...
• Tropical depression Matthew drenches Guatemala
  Tropical Depression Matthew churned over Guatemala on Saturday, soaking already waterlogged sugar and coffee farms, and the government warned that mudslides could occur in the coming days. Guatemalan President Alvaro Colom told people to stay home and urged communities in mountai...
• Bill Clinton: Go for the low-hanging fruit
  by Christopher Mims. Bill Clinton urged mayors at the Large Cities Climate Summit to go after a pollutant 25 times more powerful than carbon dioxide: methane. By capturing it from landfills, from which it leaches in prodigious amounts, cities could use it to generate power . Wre...