Aside from John McCain, no person or organization cares as much about global warming as the fine folks operating Washington D.C.'s Metro system, which is doing heavy business this time of year shuttling fannypacked tourist families to historical locations that promise to disappoint. That's on top of the many "Regulars" who take the Metro to work and back daily -- not because they want to avoid traffic, but because they want to reduce carbon emissions! According to this new Metro ad, the "average Regular" of this sort is a fat, stomping black lady with a truck who leaves Bigfoot-sized tar footprints all over her ghetto except when she's sitting on a Metro train, serenaded by birds. [YouTube]