I'd recommend that you read Grist's How to Talk to a Climate Skeptic page, but be warned that the weight of evidence they bring is depressing. File it away for future reference in any event, as you'll be sure to need it some day. And while you're at it, bookmark the Talk.Origins FAQ as well, since I daresay there's a lot of overlap between the two groups of disbelievers. Thanks to Ezra for the link.
Posted by Charles Kuffner on May 31, 2007 to Technology, science, and mathThanks for the link to the Talk.Origins Archive. In particular, I'd point your readers to the 29+ Evidences for Macroevolution FAQ, which provides a fantastic summary of the scientific evidence supporting common descent (the hypothesis that all organisms on Earth are genealogically related).
Posted by: Kenneth Fair on May 31, 2007 1:10 PM