This Joel Pett cartoon for USA Today appeared just before the Copenhagen climate change conference in 2009.
I first saw it in 2013 passed around on Facebook - and I thought it was brilliant! It voices a frustration and thoughts that I also share. Especially when trying to reason with unreasonable people who don't believe in climate change!
Joel Pett was won a Pulitzer Prize for cartooning in 2000. He is the staff cartoonist for the Lexington Herald-Leader based in Kentucky, USA.
Go here to read an article by Joel Pett about this cartoon - which has been widely shared around the world.