It may seem hard not to be pessimistic about the global battle to manage the huge risks of climate change, a defining challenge of this century. The most recent UN climate change summit in Doha made only modest progress. It made crystal clear that the pace of international action is not consistent with the scale and urgency of the challenge the world faces.
Given this backdrop, it is not hard to see why there is so much pessimism. However, if one takes a step back and examines what is happening at national and provincial levels, a wholly different picture is emerging.