After almost eight years on the air, and more than 400 episodes, this is the final episode of Boston Calling with Marco Werman. We have three unforgettable stories that touch on some of the central themes of the program: justice and race, the environment and immigration. We have some heartfelt messages to share from some of our fans from around the globe, and also Marco’s parting words to the loyal listeners of Boston Calling.Image: Host Marco Werman high-fives a fourth-grader at Curtis Guild Elementary School in east Boston (Credit: Steven Davy/The World)