I think the assertion that our emissions have gone down is not quite right. That's a snapshot in time in 2010, sort of mirroring the cratering of economic performance after the financial crisis of 2008-09. I think even the government's trends report shows increases in emissions.
In terms of natural wealth, I think of it as a bank account: to the extent you're increasing your economic account and converting your natural capital into monetary capital, you're less well off. It's sort of a stocks and flow issue, and your bank account is depleting. Your environmental ATM is going into overdrive. So conserving wetlands, conserving protected areas makes sense intrinsically, and they also reduce downstream costs on others.