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High Electricity Consumption By E-Devices for Emails, tweets cause climate change

High Electricity Consumption By E-Devices Contributes Significantly To Our Carbon Footprint
Even as people world over symbolically dim lights to fight global warming on Saturday , many will join ema il and social network campa igns that invisibly contribute to climate change.The 10th edition of Earth Day , organised by the WWF and backed by other NGOs to raise awareness about the threat of climate change, wil see landmark monuments -from the Eiffel Tower to the Empire State building to Tai pei 101 in Taiwan -go dark at 8.30pm local time.

Individuals are also enco uraged to participate and adjust lifestyles to trim their carbon footprints, thus incre mentally reducing the greenhouse gas emissions that drive global warming. Biking or carpooling to work, eating less meat, turning down the thermostat a notch in winter, becoming an `eco-responsible’ consumer -these are some of the many ways folks can make a small difference, especially in rich countries with higher per-capita CO2 emissions.

At the same time, however, a parallel realm of carbon-polluting activity -ranging from email exchanges to social network chatter (tweets, posts etc) to streaming movies on smartphones -has slipped largely un noticed under the climate change radar. In isolation, these discrete units of our virtual existence seem weightless and without cost.

A short email, for example, is estimated to add about four grams of CO2-equivalent (CO2e) into the atmosphere.

By comparison, humanity emits some 40 billion tonnes of CO2 every year.

But as the digital era deepens, the accumulated volume of virtual messages has become a significant part of humanity’s carbon footprint.

“Electricity consumption related to the growth of digital technologies is exploding,“ notes Alain Anglade of the French Environment and Energy Management Agency . In France it already accounts for more than 10% of total electricity use, he said, a percentage that holds for many developed countries.To see the big picture, it helps to break it down.

Sending five dozen of those four-gram emails in a day from your smartphone or laptop, for example, is the equivalent of driving an averagesize car a kilometre.

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