On May 31, 2011, the World Health Organization's International Agency for Research on Cancer ("IARC") announced that it was classifying radiofrequency electromagnetic fields as possibly carcinogenic to humans (Group 2b) based on an increased risk for glioma, a malignant type of brain cancer. A working group of 31 scientists from 14 countries have been evaluating the potential carcinogenic effects of radiofrequency electromagnetic fields from occupational exposure to radar and microwaves, environmental exposures associated with radio, television and wireless telecommunications, and personal exposure associated with wireless telephones. The scientists concluded that the evidence indicated that there was "limited evidence of carcinogenicity" among users of wireless telephones for glioma and acoustic neuroma and "inadequate evidence of carcinogenicity" for all other types of cancers. There was also "inadequate evidence of carcinogenicity" for the occupational and environmental exposures. A monograph providing further explanation for IARC's conclusions is expected to be published shortly. IARC's classification is the first time that an international or governmental body has linked electromagnetic fields from cell phones to cancers. Please click here to view IARC's press release.