While music gets most of the attention surrounding the Forecastle Festival, it's just one of the event's three pillars. In 2003, the festival's second year, Forecastle Festival Capt. J.K. McKnight added activism and art to the lineup. And they've been integral parts of the event ever since. As has been the case since 2005, activist activities will focus on the environment at the festival, to be held July 10-12 at the Riverfront Belvedere.