September 10, 2017 | 11:45 AM

The Green Sanctuary will sponsor a forum on geothermal heating, Sunday Sept 10 at 11:45 in Emerson Hall. The presenters are Katie Ullman and Kathy Hannun of Dandelion.co, a Google company aiming to provide home heating using ground-source geothermal. Contact Chris (bystrc@rpi.edu)