John Timmer at Ars Technica explains what his website does when faced with yet another so-called scientific study that claims to prove a link between cell phones and cancer. This study involves the The Environmental Health Trust, in a journal called Environmental Research, from Italy's Instituto Ramazzini. Timmer estimates that those sources have solid reputations, at least meaning the research is worthy of consideration. The bad news comes when looking closely at this particular study. This study of long-term exposure of rats to cell phone signals finds three increases in the incidence of cancer in animals exposed to cellphone radiation, but two weren't statistically significant. " If we're going to allow non-significant changes into the conclusions, then the data would just as easily support reporting that cellphones reduce the risk of cancer in some of the experimental groups," Timmer writes. The one significant result is only found in male rats. "These numbers suggest that the one statistical effect seen in this study is caused by the unusually low tumor incidence in the control group, rather than a specific effect of cellphone radiation," Timmer concludes. Of course, if cell phone radiation did cause cancer, just about everyone would be consulting oncologists by now.