The Sierra Club’s East Bay Dinner is held on the 4th Thursday of each month (except June, July and August) at the Berkeley Yacht Club on the Marina for years. Good food and good speakers! Guy McPherson, the speaker in April 2017, paints a grim picture of where humanity is headed (namely, we’ll all be dead in 10 years). I tried to suggest a brighter future is possible, helped of course by massive amounts of solar power. Slides are here.