Thank you. It's been interesting to be here in Ottawa, where you often hear two diametrically opposed truths on a number of different topics.
I'd like to go to Hari, please.
In terms of the research you've done, what have you seen or heard about B.C.'s example, and whether GHGs have gone up or down with a carbon tax in place? What has research told you about carbon taxes? Do they hurt or help economies?