The measures below the horizontal line have a negative abatementcost—in other words, by carrying them out, people and companies could both cut emissions and save money.
对于水平线以下的减排措施，其成本为负。也就是说，采取这些措施后，企业、家庭既减少了排放，又省了钱。
2
What is striking about the global cost-abatement curve is what a bargain it seems to be to lower emissions by protecting rainforests.
这个全球减排成本曲线突出的地方在于，它显示了通过保护热带雨林来减少温室气体排放可获得的回报。
3
As demonstrated by many cost studies, the production of sulphuric acid remains the most viable option of sulphur recovery from smelter off-gas and abatement of SO2 emissions to the atmosphere.