In lieu of a Tree Walk Wednesday post,* here is a calendar of upcoming environmental events. Wednesday, November 14 6 pm - 8 pm Green Cities, Brown Folks Sponsored by the Ella Baker Center for Human Rights Saturday, November 17 10 am, meet at 700 Jean Street, Oakland Oakland Paths & Steps Sponsored by Berkeley Path Wanderers Association (details) November 17, Saturday 10 am - noon Berkeley’s Downtown Parks: Real, Envisioned, and Vanished Co-sponsored by Berkeley Partners for Parks and the Berkeley Historical Society (details) Sunday, November 18 noon - 3pm, at Green City Gallery Seedball Sunday Sponsored by East Nay Permaculture Guild (details here and here) * I recently read about a 1999 campaign for trees on a block of Ward Street. My intent was to walk the block this evening and post my observations tomorrow. However, darkness descended more swiftly than I could bicycle home. My new goal is to take a walk this Thursday or Friday and prepare the post for next Wednesday's Tree Walk installment.