A table from the article “Communicating the Science of Climate Change,” by Richard C. J. Somerville and Susan Joy Hassol, from the October 2011 issue of Physics Today, page 48:

There’s a lot to ponder in this table. It strikes me as an important document – a compilation of one of humanity’s most tragic miscommunications.

You can click on it to make it bigger – large enough that you could embed it in a PowerPoint slide to discuss with your students or peers, if you so opted.