Paris — Technology is often touted as a solution to the world’s environmental challenges, but it is part of the problem: industry executives are facing rising pressure to clean up their energy and resource-intensive business. How much energy, for example, does it take to send a 1MB e-mail? About 25W/hr, representing 20g of carbon dioxide emissions, according to France’s CNRS research centre. It might not seem like much, but the Radicati research group expects 293-billion e-mails will be sent every single day in 2019 and the power needs to be generated — mostly from fossil fuels. Apps can quickly drain and shorten the life of phone batteries, with Snapchat a particularly “heavy” messaging service because it automatically turns on the camera. Then there are the server farms crunching mammoth amounts of data worldwide, which require huge amounts of electricity both to run and to power air conditioning which keeps the equipment from getting too hot. “Under the current global energy mix...

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