Surfer Rob Machado holds a benefit concert that honors his green efforts There’s more to Rob Machado than his wild dreadlock hairdo and being a surfing legend; he loves to educate children about saving the earth. Since 2004, the nonprofit Rob Machado Foundation has been teaching children to cultivate good habits such as recycling their trash and growing their own vegetables at local schools in San Diego.It’s a wonder how Machado even has any time to hang out with friends from his own age group, especially if they are famous musicians. Then again, he did get three of his musician friends t