Marin Organic announced on Monday the appointment of Jeffrey Westman, a Sebastopol resident, as executive director. The Point Reyes Station-based nonprofit promotes sustainable organic agriculture in a county that has grown its organic acreage from 200 to 20,000 since the group’s inception in 2001. Mr. Westman has broad goals of expanding education for kids about organic products, increasing staff and building the organization’s membership base. He told the Light that he’ll draw on his background in…