The second one has left me perplexed, becuase I'm not really sure what made them change their mind, and what it really means. The only reason cap-and-trade does not work is because industry lobbied for higher quotas than were compatible with goals of actually bringing pollution down, and because industry was handed out quotas for free instead of being forced to buy them (again, thank to Economist-supported lobbying).

Sigh...

In the long run, we're all dead. John Maynard Keynes