Interesting stats from an important research domain
Combining all the different types of evidence, it's "hard to see how you come to a conclusion" that there's a risk, he said, adding that because the stakes are so high, the issue shouldn't be dropped. "You have to be prudent about an exposure that's so widespread and so novel," he says.
Globally, there are an estimated five billion cellphone subscriptions, the IARC said, citing data from the International Telecommunication Union. The global population is currently about 6.9 billion. The number of U.S. wireless subscribers, as counted by number of connections, was 302.9 million in December 2010, compared to 33.8 million in 1995, according to CTIA.