At this point, it's hard to tell whether Ed Begley, Jr. is more famous for his decades of acting or his decades of environmentalism. Sure, he's logged over 200 appearances on stage, film and television, including his Emmy-winning breakout role on St. Elsewhere and his priceless turn on Arrested Development. But his funniest performance is arguably his self-effacing cameo as a hardcore green activist in the classic 1999 Simpsons episode "Homer to the Max", in......