Let's for the sake of argument say we're witnessing a geologically breakneck, totally coincidental phenomenon that happens to concur with a planet building more and more highways:
Last year was the hottest on record for the contiguous United States, shattering the previous mark set in 1998 by a wide margin, the National Oceanic and Atmospheric Administration announced Tuesday.
The average temperature was 55.3 degrees, 1 degree above the previous record and 3.2 degrees more than the 20th-century average. Temperatures were above normal in every month between June 2011 and September 2012, a 16-month stretch that hasn’t occurred since the government began keeping such records in 1895.
Even if all those cars and use of fossil fuels are just one contributing factor to global warming—even then—wouldn't the global warming skeptics agree that, even if it's the least we can do, we should accelerate our shift to transportation that doesn't rely on as much fuel? Even if that helps just a little bit? Even if that means our city council has to—holy shit—not freeze our transit planning budget and stop deferring rail projects? You might expect them to do that. But, just like global warming, we're told, there are plenty of reasons to be skeptical.