Happy Earth Day. Did you do anything fun? I went to the Arboretum. Maybe you’re not ready for the Earth Day celebration to end. Maybe you haven’t even started. My suggestion: check out the White Rock Home Tour. What does one have to do with the other, you ask? Well, one of the houses on the tour was built by Alan Hoffman, noted green builder. Apparently, the yard is xeriscaped and the house is Platinum LEED-certified. Go talk to him either this Saturday or Sunday from 1 to 3 p.m. Get more information on the tour here.