The amount of carbon emissions from the computing industry is approaching that of aviation, according to new research.
Environmental campaign group Global Action Plan said today that IT now accounts for ten per cent of the UK's annual energy consumption - equivalent to one billion tonnes of CO2 worldwide.
The group says that people print out an amount of paper equivalent to an in-tray 8,000 miles high every year, while one in three of people never turn off their computer.
Report author Trewin Restorick said: "When people think of carbon emissions they think of planes, they think of cars, but they don't think about the humble computer sitting on your desk.
"But we need to realise that every time we use a computer it's helping to put more carbon into the atmosphere."
Mr Restorick said that UK firms were in danger of being held back because of a lack of reliable energy sources.
"We're already hearing about companies within the city saying their growth is being restricted because we physically can't get enough energy into London, so we're restricting growth," he commented.
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