The research project leader Lutfi Belhill wrote in an article published in Dialogue magazine that the "relative contribution" of ICTs in the total global carbon emissions accounted for 1% in 2007 and may rise to 2020. 3.5%, may reach 14% in 2040, reaching more than half of the carbon emissions from transportation.
In terms of carbon emissions in the ICT sector, smart phones accounted for 4% in 2010 and may rise to 11% by 2020. In absolute terms, the CO2 equivalent of smartphones in 2010 is 17 megatons, which is likely to increase in 2020. To 125 megatons.
Bell Hill said that this increase is not only due to the popularity of smartphones. Cell phone manufacturers encourage consumers to replace a mobile phone every two years. Old mobile phones are 'becoming obsolete and causing unnecessary and unnecessary waste'. More mobile phone users are increasingly relying on smart phones. After investigating 2,000 adults in December 2017 in the UK, they found that each of these people viewed their mobile phones 28 times a day, and one third of them were actually unnecessary. The popularity of smartphone hardware has prompted software companies to flourish. , Constantly developing new applications to attract users, also increasing carbon emissions.