The chief question at this weekend's G20 summit will be how to keep the world economy growing. The Europeans are cutting government spending, ignoring President Obama's call for more stimulus.
Several nations that will be represented at the G8 and G20 have deepwater drilling off their shorelines. So they have an interest in hearing any remarks from Obama about the Gulf oil spill.
Topping the G-20 'to do' list is to settle on any additional economic stimulus – and whether to rein in banker bonuses. Global warming is on the table, too.