Despite the piles of snow covering the ground in northeastern Wisconsin, the show will go on for a number of Earth Day events scheduled this weekend. In New London on Saturday Green Apple Folk Music Society open stage performance, Mosquito Hill Nature Center: Six local folk music performers and groups will play their favorite traditional folk tunes, many in celebration of Earth Day. Admission at the door is $5 and $2 for members. Hours: 7:30 p.m.-finish, in the Navarino Shiocton area on Saturday The Navarino Nature Center will hold its Earth Day Open House. Look for crafts, animals to pet, birdhouses to build, wagon rides and vendors. Admission is mainly free, but some activities will have a fee. Hours: 11 a.m.-2 p.m.