Attempts to shave costs by economizing on energy use reduce pollution. Higher prices for oil substitutes spur research into other energy technologies - research that is much needed today if we are to tackle the problems of global climate change tomorrow.
可以肯定，多数税收会带来沉重的"额外负担"。税收成本远较收入价值为高，因为潜在的纳税者会想出种种办法来进行逃避。而对石油征税却不会带来额外负担。不仅不会带来负担，甚至还有额外的收益。向更为节能的运输方式过渡缓解了拥堵，节约能源、降低成本还能够减少污染。高油价替代了研究其它能源科技的激励政策－而如果我们想要避免今后的全球气候变化，这种研究正是目前的当务之急。