Last year, when Clark "gave his car a day off" and walked to work, I thought it was quaint. And if Clark wanted to encourage others to clean up the air and park their car for a day, I was all for it. I hurried to his house with a photographer in a company SUV and took pictures of him leaving for work. Then I jumped in our SUV and headed back to the station, waited a while (a LONG while since he lives more than 5.5 miles from the station) and took pictures of him arriving.