The energy used on information technology – to power all the world's computers, data storage and communications networks – is expected to double by 2020, according to a new study from McKinsey & Co.
Information technology could account for 1.54 gigatons of GHG, or three percent of global emissions, by 2020.
IT emissions are expected to rise nine percent annually in emerging economies. Last year, China was responsible for 23 pecent of global IT emissions, overtaking North America to become the global leader in both overall GHG emissions and IT-related emissions. The country's GHG emissions could double by 2030, according to a recent study.
Today, the world's 30.3 million servers and other information technology systems are responsible for about two percent of global GHG emissions.
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