The phrase "ton reduction" refers to the act of decreasing or lowering the amount of something, usually by a specified quantity, which is measured in tons. Full definition
Achieving a 50 percent reduction in deforestation, and a corresponding 1.5 billion to 2.7 billion metric ton reduction in emissions each year, would cost $ 10 to $ 21 per metric ton, or between $ 17.2 billion and $ 28 billion per year, according to the model calculations. (treehugger.com)
So, plainly and according to Sound Transit itself, what turns on the ST3 vote is the prospect of an incremental 130,000 metric tons reduction in 2040. (crosscut.com)
By accepting — implicitly or otherwise — the politically identified (and potentially inefficient) goal, the ten - million ton reduction of SO2 emissions, for example, economists were able to focus successfully on the importance of adopting a cost - effective means of achieving that goal. (robertstavinsblog.org)