Earth Day serves as a reminder that we are all stewards of our environment. Now, don’t get me wrong – I’m no tree hugger, but I absolutely believe we need to cognizant of the impact we have on the planet in order to sustain it for ourselves and future generations. Liken the planet to your own house: If you don’t maintain the temperature, it will fall apart. If you don’t clean up your litter, it will be overtaken by mold and who knows what else. If you don’t repair what is broken, your house will eventually crumble in shambles. In the same manner, we need to take steps to ensure our planet Earth is properly maintained. There are many Doomsday predictions that place humans squarely at the center of causation. Global warming, nuclear warfare and pollution are just three scenarios that, if left unchecked, could spell doom for the human race. Naturally, graphic designers have taken up the plight to educate the world about keeping the planet habitable; sometimes in poster, flyer, and web designs, and sometimes with charming designs such as the following 30 that depict what will happen if we don’t save the planet.