Even if a single person can't change the world, being a tiny part of a solution is better than being a tiny part of a problem.   

Well, I am a power hungry beast. However, in recent years, I have tried to limit that by purchasing an eco-boost pickup truck. Yes, I have to have a truck. I haul and tow all the time. I know it isn't much, but for me, it is considering the beast pickup trucks I used to buy. I also signed up for the recycling program we have here. I also changed (expensive) all our light bulbs to LEDs. 

Now, if I could just get those costly solar panels I want, I would be doing better. But, it takes time. People do not change overnight and the cost of change is well, pretty spendy.  

Yep, going green isn't just considerate to mother Earth, it's also cost-effective. We're rapidly approaching the point where it's far more profitable for individuals and businesses to go with renewables over anything else.

One curious effect of our changes though is that printing prices for books have gone up due to the paper industry shifting to creating packaging to replace plastics.