ABSTRACT
Despite recent progress in putting the threat ofglobal warming onto the international agenda (see Section B below), the debate over the greenhouse effect continues to be shaped by two diametrically opposed viewpoints. These views can be characterized as follows:
Don't act untilyou are certain or wait-and-see. Analysts holding to this view believe that current scientific uncertainties are still too large to warrant costly preventative action. Instead, more research should be pursued to reduce scientific uncertainties.
