Using Scenario D as an example, the remaining allowances in 2015 are 100 million metric tons for carbon, 1.3 million tons for SO2, 0.2 million tons for NOx and 25 tons for mercury.
The remaining allowances in 2000 are 50 million metric tons for iron.
mnli hypothesis: The remaining allowances in 2000 are 50 million metric tons for iron. premise: Using Scenario D as an example, the remaining allowances in 2015 are 100 million metric tons for carbon, 1.3 million tons for SO2, 0.2 million tons for NOx and 25 tons for mercury.