The good news is that there are many ways by which improved incentives could reduce emissions – partly by eliminating the myriad of subsidies for inefficient usages. The US subsidizes corn-based ethanol, and imposes tariffs on sugar-based ethanol; hidden in the tax code are billions of dollars of subsidies to the oil and gas industries.
好消息是我们有很多办法可以通过改善后的激励机制减少（温室气体的）排放—其中一个办法是取消对低效使用能源的种种补贴。美国对用玉米为原料制备的乙醇提供补贴，而却对以糖为原料的乙醇征收关税，被这一税则掩盖的是对石油和天然气工业的巨额补贴。