by Timon Singh, 11/22/10 Wi-fi networks blanket urban areas around the world, keeping us constantly connected to the internet wherever we may be — however a new European study finds that these networks may have harmful side-effects on the environment. According to a report by Wageningen University, the constant humming of internet data centers and wi-fi networks could have an adverse effect on nearby trees. The article states that the background radiation produced by these beacons of tech could be making trees sick.