Ben Cardin actually said...

if China does not take respectful action in regards to carbon emissions, then it may be appropriate for the United States to take some actio...

The key is obviously to have a framework where they're part of the agreement.

Some would also argue that China has arbitrarily kept its currency low, holding down the wealth of its country, at the cost of the United St...

But, if China does not become party to that, then, of course, the mechanisms would not have any impact.