Assume a 4800 nT/min geomagnetic storm disturbance hit the United States. You are tasked with estimating the economic damage resulting from the storm. a. If there were no power outages, how much impact (in dollars) would there be in the United States just from the "value of lost load?" Explain the assumptions you are making in your estimate. [ If you are stuck, you can assume 200 GW of lost load for 10 hours and a "value of lost load" of $7,500 per MWh.] b. If two large power grids collapse and 130 million people are without power for 2 months, how much economic impact would that cause to the United States? Explain the assumptions you are making in your estimate. c. If every country above 40° magnetic latitude had a similar proportion of its economy impacted, what would the global economic impact (in dollars) be? d. If it cost $1 billion to move from the scenario in (b) to the scenario in (a), and the U.S. government wanted a 10:1 ratio of money invested to expected economic damage prevented over the next 10 years, what would the odds of a 4800 nT/min geomagnetic storm disturbance over the next 10 years have to be to justify the expense? [In other words, find the odds such that the expected value of the damage is $10 billion.] How do those odds compare to the reported 12% odds of a Carrington-level storm in 10 years?