We're celebrating Earth Week here on Blastr, and we decided to start out by reminding you that one small act can make a big difference when it comes to changing the world. Why, imagine if E.T. had discovered some horrible candy like marshmallow chicks! He probably would've radioed for an Earth invasion solely out of pity.
Because this concept is such a fundamental part of science fiction (as well as real life), we dug up 22 cases from classic sci-fi film and television to inspire you to change your world.
Check 'em out below!