We reference in the framework document a study done by the World Resources Institute that talks about what's important in achieving reductions is the stringency of the target. Our estimates are that if you were to compare our target for greenhouse gases that we're imposing on our industry on a go-forward basis, it is at least as tough as any other target in the world. In our view, it's as tough in terms of the reduction it's requiring of our industry, as is being required of any other industry by any other regulated system.
On May 16th, 2007. See this statement in context.