Such a charge, whether a tax or a system of tradable permits to pollute, would change energy economics radically.
这笔费用,无论是税费还是一种可交易的污染许可系统,将会从根本上改变能源经济。
It involves placing a limit on the volume of emissions that can be produced around the country each year, and then auctioning tradable permits to pollute.
这个策略设置了全国每年可排放污染气体的总量限额,然后以拍卖的方式出售排污许可。
The government would issue tradable permits to emit carbon, at first by giving 85% of them away, but eventually by auctioning them.