Outspark today announced the Earth Day Event, a company effort of raising funds to plant 10,000 trees. Between now and April 20, 2008, they are offering several brand new limited-edition premium items in each of their three games. A portion of the proceeds from all premium items sold during the period will be donated to a charitable organization that plants trees. Visit their website and give then a hand. Almost 1,000 trees have been planted until now.