Start with what you love. Susannah Tuttle said that to me on Saturday, and it was perfect for the moment. I loved the bluegrass festival in Raleigh and the way it lifted our spirits. I broke away from the festival in the afternoon and strode up to the state government mall for the iMatter rally. I loved that too. The iMatter Youth NC March for Our Planet was led by Hallie Turner, 11, who dates her activism on climate change to a dinnertime conversation with her parents—and a subsequent visit to the library where she read Al Gore’s book An Inconvenient Truth—at age 9. […]