I was lucky enough to be invited along to the Second Hillary Symposium in Christchurch on Friday, World Environment Day. While the symposium had a significant focus on Christchurch, the take-away lessons dealt more with the global situation, and how any city could use it to an advantage. The speakers were of an extremely high calibre, and put forward some excellent ideas and solutions. I highly recommend having a look at the Hillary Symposium website for a summary of each of their presentations.