The tree-loving folks of Dutch city Alphen aan den Rijn commissioned the study after finding abnormalities on trees that couldn't be explained by known viral or bacterial infections. Over the last five years, the study found that all deciduous trees in the western world are affected by radiation from
mobile-phone networks and wireless LANs.
Over 70 per cent of trees in urban areas in the Netherlands are afflicted by Wi-Fi sickness, displaying significant variations in growth, and bleeding and fissures in their bark. That's compared with just 10 per cent showing symptoms five years ago. Meanwhile, trees in wooded areas remain happy and healthy, untroubled by wireless unwellness.