Surprisingly, they also passed up the opportunity to lavish more subsidies on ethanol. They did not even bother to consider a carbon tax or a cap-and-trade scheme for greenhouse gases.
A carbon tax could raise a similar amount and, properly designed, could have the further merit of helping Britain to lower its emissions of greenhouse gases.
碳税能提高相同的数量，而且可以进一步帮助英国降低温室气体的排放，如果设计合理的话。
3
Montgomery county Council members are poised to pass a carbon tax to fight global warming that would apply only to the county's largest emitter of greenhouse gases.