One option would be to introduce flexible pricing, tied to the price of oil. For example, for every $5 decline in the price per barrel, the carbon tax could be raised by a specified amount; for every $5 increase, the tax could be lowered by, say, two-thirds of that amount.
碳定价机制的结构仍有待讨论。一个选择时引入弹性定价，与石油价格绑定。比如，石油价格每下跌5美元/桶，碳税就提高一个特定数额；每上涨5美元，碳税就下调（比如）这一特定数额的三分之二。