It truly is Earth Day every day for Landis Hackett, a senior at Princeton High School. So far, he’s met his personal goal of riding his bike to school every day this year, come rain or shine, snow or sleet. “My main inspiration is my dad, who used to bike 12 miles both ways to and from work in D.C. every day,” said Hackett, who is president of the Bike Club as well as a member of three singing clubs and boys’ lacrosse at PHS.  “I have the satisfaction of knowing that my daily communte to and from school has no negative environmental impact, and that I’m spreading the word about Princeton being a bike-able town.” The hardest days were, predictably, during those long winter months. “The single most difficult day was when it was -7 degrees without the windchill, -13 with it, and probably -20 degrees while on the bike,” he noted. Still, it never occured to him not to ride. “Now it’s a habit, and if I broke that habit, it wouldn’t feel right.”