pudiated the Kyoto Protocol on economic grounds, finding that implementing the relatively modest reductions called for would be too burdensome for the American economy.4 Such a stance stands in sharp contrast to President Reagan’s position on ozone depleting chemicals, which assumed that once grounds existed to think that an international environmental problem was serious, we should address it vigorously if doing so was feasible. Under Reagan, the United States led the world to an agreement phasing out the principle ozone depleting chemica