Eliminating carbon emissions from the American transportation system can be done, according to a new report from the Frontier Group [PDF]. The tools to reduce energy use from cars and light trucks at least 90 percent are at our disposal or in advanced stages of development. The remaining 10 percent could be supplied by renewables like wind power.
“We have the technical capacity to do all of these things,” Frontier’s Tony Dutzik told Streetsblog. Here’s how it would work, if we can muster the will.
The first step is to reduce driving. Frontier Group estimates that the following four strategies could cut miles driven per capita by 28 to 42 percent, which amounts to a 10 percent total decline by 2050 when accounting for population growth.
1. Walkable Development: We have to build more walkable places where people don’t have to hop in a car for every trip. People living in compact neighborhoods drive 20 to 40 percent less than people living in spread out areas. If 60 to 90 percent of new construction between now and 2050 is walkable development with good transit connections, it could reduce total GHG emissions from transportation 9 to 15 percent.
To accomplish that, Frontier says big coastal cities like New York and San Francisco need to “build up” and make room for more people. Meanwhile, sprawling places like Atlanta and Houston need to seize opportunities to redevelop existing space — parking lots or closed malls, for example — in a compact form.
2. Pricing Roads: Pricing parking alone could reduce total vehicle miles traveled by up to 3 percent. A blanket vehicle miles traveled tax, meanwhile, could reduce mileage by 10 to 12 percent. Congestion pricing, which puts a higher price on road use where and when traffic is most intense, is another avenue to cut mileage. London’s congestion pricing system, which only covers the central city, has helped reduce driving 10 percent even as the population has grown, Frontier reports.