Earth Policy Institute: Run Cars on Green Electricity, Not Natural Gas
By Jonathan G. Dorn
With the dramatic increase in oil prices earlier this year translating into higher prices at the gas pump in the United States, concerns over U.S. dependence on foreign oil are once again part of the national discussion on energy security. Combined with the growing understanding that carbon emissions from the combustion of fossil fuels are driving global climate change, the debate is now focused on how to restructure the U.S. transport system to solve these two problems.
While the idea of running U.S. vehicles on natural gas has lately received a great deal of attention, powering our cars with green electricity is a more sensible option on all fronts—national security, efficiency, climate stabilization, and economics.
Having a fleet of natural gas–powered vehicles (NGVs) would simply replace U.S. dependence on foreign oil with a dependence on natural gas, another fossil fuel. The United States has scarcely 3 percent of the world’s proved natural gas reserves, yet even without the increased demand that would result from a fleet of natural gas cars, the country already consumes nearly a quarter of the world’s natural gas. At current rates of consumption, U.S. proved reserves would only meet national demand for another nine years.
U.S. natural gas production has remained relatively constant over the last two decades and is unlikely to increase over the long run, despite growing consumption. Consequently, any rise in demand is likely to be met by increasing imports. Since the late 1980s, U.S. net imports of natural gas—primarily from Canada—have tripled. The U.S. Department of Energy projects that by 2016 the majority of U.S. natural gas imports will come from outside North America.
