and then we have a climate scenario, that is designed to limit global warming to 2 degrees secentigrade. in all three of those scenarios, energy efficiency plays a very important role. in fact, we believe in looking at climate change and the need to restrict emissions of carbon dioxide, basically we think that energy efficiency alone, with currently available technologies, can lead to at least 50% of the emissions reductions we need, if we are going to produce -- or prevent global warming beyond 2 degrees se centigrade. but, of course, energy efficiency isn't just important for the environment or for climate change, it's important for energy security. it's important for economic success as well. because the more efficiently you can use your resources, the more competitive you can be in the international market. the more efficiently you use your resources, the less of them you need, and therefore, the less dependent you have to be on imports of foreign energy. so energy efficiency is the one thing that we see that serves all of the objectives that are important to the iea, and we include