Here in Cancún, I tracked down Bill McKibben, the founder of 350.org, to ask him this question: What is the point of these events? You are getting attention, but to what end? His answer was so simple it was obvious.
One of cap and trade's longtime advocates has said the scheme "died of what amounts to natural causes in Washington." But earlier this month, China and officials from the EU met to scope out a pilot carbon-trading program.
Let me be clear: though I'm at a climate conference, I am not riding my bike for environmental reasons. I ride because it is fun and because entering a town by bike gives me a much better sense of a city's idiosyncrasies.
If you believe, as I do, that real action can occur without a "binding" agreement or having all the details completed, you'll be surprised to learn that some key things might actually be happening in Cancun.