By Greg Schweser Director Sustainable Agriculture and Food Systems University of Minnesota Regional Sustainable Development Partnership The UMN Regional Sustainable Development Partnerships, the Lake City Catholic Worker Farm, and the Sustainable Farming Association are excited to announce the next open house (and potluck) of our Deep Winter Greenhouse (DWG) campaign to help producers build passive solar greenhouses developed by the University of Minnesota Center for Sustainable Building Research. This open house will occur on Saturday, May 5 from 4:00 to 7:00 pm at the Lake City Catholic Worker Farm, in Lake City, Minnesota. The Lake City Catholic Worker Farm is one of five producers and community organizations that was chosen to participate in the University of Minnesota Regional Sustainable Development Partnership’s campaign to spread awareness of this technology and to conduct research on the production and financial capacity of the system. Please see the attached f