More than 700 people left the "It's Time for Climate Collaboration" evening with calls for action sounding in their ears and glimmers of hope dancing in night breeze. The June 12 event from the Cape Cod Climate Change Collaborative featured author/activist/environmentalist and founder of Third Act Bill McKibben, CEO Samsø Energy Academy in Samsø, Denmark Soren Hermansen, and Massachusetts climate chief Melissa Hoffer.