Dr. Michael Mann is considered the most visible and effective climate scientist alive.  He is an active communicator.  He frequently authors op-ed pieces in national publications, carries a full teaching and research schedule and is a climate optimist as he sees not only the climate change, but attitudes change.  In his book, The New Climate War-The Fight to Take Back Our Planet, he names names and tells the world where the enemy of science dwells, what weapons they are using on often unsuspecting Americans.  He tells you why they are fighting, and how science is fighting back, with some interesting and unexpected allies.  He pulls no punches.  If this is a war, he is the commanding general, often wounded in battle, he dresses his wounds and rejoins the fight.