“Often when I’m on TV, they’ll ask what are the three most important things for people to do [to stop global warming]. I know they want me to say that people should change their light bulbs. I say the number one thing is to organize politically; number two, do some political organizing; number three, get together with your neighbors and organize; and then if you have energy left over from all of that, change the light bulb.”

— writer and activist Bill McKibben