It's hard to see how we are going to secure both of these [climate change and peace in the Middle East] with a president in America who is not committed to them.

You couldn't necessarily say, 'That hurricane, that storm, that flood only happened because of climate change,' (but) you're starting to see a pattern of extreme weather events.

Bush agreed in Gleneagles that climate change was urgent.

Climate change is, in my view, long term, the single biggest issue that we face,

That's a serious wedge, and shows a political climate change,

The big question is, what role does climate change have in all of this?