Here is an interesting website where you can calculate your ecological footprint. We are using so many resources that on average for our population to keep living like the average American, we would need 5 planet earths to sustain this level of living. So take the quiz see what you are at and figure out some small ways to change the way you impact our world:
http://www.myfootprint.org/
Image from: <http://dobigthingsblog.wordpress.com/2013/06/24/follow-these-green-steps-to-reduce-your-ecological-footprint/>
Keep loving the green life