After spending the week meeting with world leaders at the G8 discussing and struggling to try to negotiate solutions to world problems like global warming, President Bush exited his last G8 summit Thursday by saying "goodbye from the world's biggest polluter."

According to various reports, Bush, standing amongst other country's leaders, then punched the air and smiled.

The London Telegraph reports that British Prime Minister Gordon Brown and French President Nicolas Sarkozy "looked on in shock" after watching Bush.

The G8 spent much of its time this week dealing with global warming, agreeing Tuesday to cut global emissions in half by 2050.