Non-ionizing radiation is radiation that isn't energetic enough to separate electrons from atoms (thereby creating ions). The radiation from a cell phone is mi

Non-ionizing radiation is radiation that isn't energetic enough to separate electrons from atoms (thereby creating ions). The radiation from a cell phone is microwave radiation, which (as you probably know) is capable of heating matter. As far as I am aware, the conjectured nature of the possible danger from cell phones is that localized heating in the brain could result in increased likelihood of cancer. So the natural questions are (a) are cell phones capable of causing a non-negligible amount of brain heating and (b) is any such heating actually carcinogenic. This is not an issue I follow particularly closely so I don't know what the current state of knowledge is with regard to either of those two questions.