In all the Heartland-related kerfuffle recently, I find myself going back to Denning's 15 minute presentation to their conference last year.

Only a free market can bring this kind of change about. We are not going to get this kind of change from interventionist government. Who’s going to advocate for these effective solutions? Do you think Greenpeace is going to advocate for this? Is that what you’re waiting for? Evidently. If free market advocates shirk their responsibility, others will dictate policy. Is that really what you want? When will you stand up and offer solutions? Are you cowards? To recap, in case you missed it: everyone in this room understands climate well enough. It is not worth your time to argue about the third decimal point. Climate is going to change a lot in the next few decades – and policy will be enacted to deal with perceived needs. The political right has been AWOL in proposing solutions to these problems. And the world needs you to be engaged.