Internet, video and other cloud services, which comprise information communications and technology (ICT) industry, spews out more than 830 million tonnes of carbon dioxide annually, researchers found.
Carbon dioxide is also the main greenhouse gas and the emissions from the information and communications industry alone accounts for about two percent of global CO2 emissions, the same proportion as the emissions from the aviation industry.
Researchers note that controlling those emissions requires more accurate but still feasible models, which take into account the data traffic, energy use and CO2 production in networks and other elements of the ICT industry, the Journal Science and Technology reveals.
The researchers suggest, based on their models, that more efficient power usage of facilities, more efficient use of energy-efficient equipment and renewable energy sources are three keys to reducing ICT emissions of CO2.
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