http://unearthedcomics.com/wp-content/uploads/2013/07/Unearthed-TheCause-1307-1-web.jpg 
https://s3.amazonaws.com/ksr/assets/000/964/356/92059b12d4e6d9eb5470d702b40bdb54_large.jpg?1380389134

http://www.doka.ch/kitchenHorsey.gif
http://politicalhumor.about.com/od/environment/ig/Environment-Cartoons/Polar-Bear-Earth-Day.05Pg.htm