I'm not sure if I fully understood the question, but certainly we have made efforts over the last number of years and even decades to improve our environmental performance. As a company, we have set some internal targets—and that's global, as well as across Canada—to reduce our emissions by 10% per product tonne by the year 2020. As far as greenhouse gas emissions go, we've already achieved a 5% reduction, with more to come, as well as reductions in energy and freshwater use.
However, as I said in my remarks, when you compare Canadian potash production to some of our global competitors, we already come out quite favourably. In fact, some estimates are that the emissions we create are 50% less than those of other companies and other countries around the world. It's challenging for us to continue to see those major reductions in emissions. There are some opportunities, but for a mature sector that is energy-intensive, those types of further reductions would require significant research and upfront capital, which of course is a challenge for us.