http://www.computerweekly.com/news/4500260847/Mobile-tech-saves-more-carbon-than-it-emits-says-Carbon-Trust
A telco-funded study by the Global e-Sustainability Initiative (GeSI) for the Carbon Trust has found that carbon emissions reduction from the use of mobile communications technology in Europe amounts to more than 180 million tonnes a year - higher than the total annual emissions of the Netherlands.