interview > greene > greene 3
Greene 3 (1:49)
Topic(s): Car Culture / Environment / Foreign Oil / Government
© WGBH Educational Foundation
Please watch the clip first. If you plan to use it, review the Rules of Use, then click on the download button.
This clip is licenced under a Creative Commons Attribution Noncommercial 3.0 Unported License.
I think there are three main issues that we have to
address with respect to energy for transportation. In the United States we know
we have a problem of oil dependence. This oil dependence costs our economy
hundreds of billions of dollars every year in excess economic costs. It makes
us dependent on certain foreign suppliers who, you know, we may have foreign
relation problems with and maybe gets us involved in military situations
we'd rather not be involved in. Also, well, that's probably all I
want to say about the oil security problem.
We also have a problem of greenhouse gas emissions. Our
transportation system alone produces more greenhouse gas emissions than any
country in the world except China. So our transportation system is a major
source of climate-changing greenhouse gases.
So first, oil dependence for the United States. Second,
greenhouse gas emissions for the world. And third, there's this problem
of sustainable energy, which I've touched on before. That is that
we're reaching the limits of being able to continuously increase the
amount of petroleum we produce to support the transportation system every year.
And we're going to have to find—if the mobility in the world is going
to continue to grow in places like China and India especially, we're
going to have to find other sources of energy to power the transportation
system, and we're going to have to make it more energy-efficient at the