A free program on geothermal heating and cooling, and what it takes to create a green home will be featured on Thursday, Nov. 17, at 7 p.m., at Cannon Grange Hall, 25 Cannon Road.
Mike Trolle of BPC Green Builders will talk about several homes in the area he has converted to geothermal energy. This program is co-sponsored by the Discovery Center at Ridgefield.
Parking is available at the Cannondale railroad station across the road from the Grange Hall.
Information: 203-762-1900.