1. Pollution in California's waterways has increased, for example "the number of fish with... mercury and other toxins too high for human consumption increased 24 percent...Pesticide pollution increased 36 percent" and excessive trash is up 76% (http://www.sfgate.com/science/article/EPA-California-waters-show-widespread-pollution-2326936.php) . Based on the Coase Theorem, why might it be desirable for the government to be involved in this issue? What are some of the advantages and disadvantages of the 5 usual alternative approaches to dealing with externalities in terms of these problems? Which approach(es) would you recommend for this issue