That's a gigantic "as long as" qualifier

If Europeans could vote in US election, Obama would win, but then what? - The Irish Times - Thu, Oct 23, 2008

The one big issue for Europe that both candidates agree on, and which would mark a significant reversal of current US policy, is the need for a global deal to tackle climate change. "A deal on climate change is a potential deliverable, as long as China and India get on board," says Hulsman.