Four Massachusetts teens who say they were sick of watching the state drag its feet on global warming went to court — and yesterday came away with a historic victory that could have lasting effects for decades. The Supreme Judicial Court has sided with Olivia Gieger and Shamus Miller of Wellesley High School, and Isabel Kain and James Coakley of Boston Latin School — high school kids who sued the Department of Environmental Protection. The court agreed with them that the state has failed to fulfill its legal obligation to reduce greenhouse gas emissions. “It’s so surreal. I always 
believed...