Case study Figure 1. demonstrates Phaseouts of ozone-depleting substances since 1987 of the Antarctic ozone hole. Explain the data on the graphics. What is the trend? What changes you see before and after the Montreal Protocol? Looking at the graph, are we able to say that the Montreal Protocol was successful in addressing ozone depletion? Yes or no, explain your answer. Millions of sq km 30 25 20 15 - 10- 5- 0 Montreal- Protocol 1979 1985 1990 1995 2000 2005 2010 2015 Year