1- Suppose, a polluting firm initially discharges 80tons of CO2 emissions into a fishery firm. Without liability law in place, it causes a total damage of say, $22,000 to the fishery. With liability law, it undertakes a scheme to reduce emissions from 80 tons to 50 tons where MAC=MD. But the scheme costs the polluting firm $ 4500. How much the polluting firm can save from the total damage now? Show with graph.