I've accepted that human activity is causing the catastrophic destruction of the planet and will eventually exterminate all creatures on the planet. Only we can stop it. Therefore we must give up the following if we are truly serious about saving ourselves:
No Christmas lights. We can't be allowed to decorate when it kills polar bears.
No football games. Not just the NFL either, college and high school sports must be stopped because they generate lots of traffic going to and from stadiums. (women's basketball would still be allowed because it generates no traffic)
No movies. Our entertainment isn't worth destroying the planet. I can't even allow you to bike to the theater because the carbon footprint of the construction, production and showing of films is just too large.
No TV. Every time you turn on that carbon creating screen you melt a little bit of the polar ice caps.
If you really accept global warming, like I do, you will gladly make these sacrifices in the name of the planet.