Minneapolis-St. Paul

THERE WILL be more than just tons of political “hot air” emitted in Denver and Minneapolis-St. Paul during the respective Democratic and Republican national conventions in the coming weeks. So will, literally, be tons of greenhouse gas emissions. Despite efforts by both parties to appear politically correct by “greening” their conventions and their marketing efforts, neither campaign has bothered to address the carbon footprint of their political advertising and events. And they constitute a big footprint, indeed. PQ Media reports that political ad spending is expected to rise 43 percent to an all-time high of $4.5 billion during the 2008 election cycle. Direct