Science News

Earth Hour (earthhour) on Pinterest

Green groups around the world are turning to social networking to drive their campaign for Earth Hour on Saturday, when lights are turned off for an hour to signal concern about global warming.But here's the irony. With every email, every tweet, every appeal watched on YouTube or "liked" on Facebook, environmentalists are stoking the very problem they want to resolve. Each time we network, we emit carbon dioxide (CO2) through the fossil fuels which are burned to power our computers and the servers and databanks that store or relay our message.