We all know that Rush Limbaugh--global warming skeptic, proud owner of multiple SUVs--has been ridin' dirty for as long as he's been on the radio.So it's no surprise that large swaths of the blogosphere find it highly ironic that Rush did an ad for GM in which he talks about how much he loves him some GM SUVs, and without missing a beat, touts GM's forward-thinking, environmentally friendly practices....
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