Q+A-A primer on climate change at the U.N. and G20

"He has to show the rest of the world that he is serious about a global agreement, that it's not just rhetoric," said Nick Mabey, head of E3G, an environmental group in London.

"Obama's speech will tell us about how far the forces that are talking about delay and lowering expectations are winning and how much he is still focused on winning this battle. That will massively affect the negotiations."

From the Front Lines of the G20: A Global Climate [Hoax] Wake-Up Call « It’s Getting Hot In Here

At noon tomorrow, scores will gather on the corner of 7th and Penn in downtown Pittsburgh, all with their alarm clocks set to 12:18. At that time, a cacophony of noise will sound, and the crowd will rush forward to the sleeping leaders–President Obama, Chancellor Merkel, President Medvedev, and Prime Minister Harper–who will be located in the middle of the brick square, sleeping on the job with their country’s flags as blankets.