A story started making the rounds last week about French energy regulators asking companies to cut back on email in order to save energy. It sort of sounds like a satirical piece — it did, in fact, end up in Reddit’s “Not the Onion” subsection — but the suggestion really does come from the French regulator RTE.
Which got us thinking: How do our tech habits affect how much power we use and the environment? Finding an answer is harder than you may think. After all, the energy you use at your desk writing a typical email isn’t all the energy that an email uses. As the French warning indicates, there’s a whole infrastructure behind every message, which includes not only the electricity you use but also the energy it takes to store and transmit that information through data centers.
Many researchers have looked into the carbon footprint of these types of technology — meaning the amount of greenhouse gas produced to support the activity — to measure the impact they have on the environment. This is commonly expressed in the volume of carbon dioxide. Using more energy tends to produce a larger greenhouse gas emission, but using alternative forms of energy that don’t burn greenhouse gasses can also reduce a technology’s carbon footprint.
The carbon footprint of activities depend heavily on which companies you use, as different companies source their energy in different ways. Greenpeace and other environmental activists have long encouraged consumers to think about the environmental effects of their tech use.
Working off these and other sources, we were able to come up with some rough estimates about how your tech habits affect the environment. Your ultimate impact will, of course, depend on the way you power your own home — solar, wind, etc.
Email: The average spam email has a footprint equivalent to 0.3 grams of carbon dioxide emissions (CO2e), according to carbon footprint expert Mike Berners-Lee’s 2010 book “How Bad are Bananas: The Carbon Footprint of Everything.” A normal email, according to that book, has a footprint of 4 g of CO2e, which accounts for the power data centers and computers spend sending, filtering and reading messages. An email with a “long and tiresome attachment” can have a carbon footprint of 50g CO2e.
Berners-Lee estimates that a typical year of incoming mail adds 300 pounds of emissions to a person’s carbon footprint, or the equivalent of “driving 200 miles in an average car.”
On a larger scale, he says that the world’s data centers in 2010 accounted for 130 million tons of CO2e, or a quarter of a percent of the world’s global total. Berners-Lee projected that the world’s data centers will produce 250 to 340 million tons CO2e by 2020.
An hour of streaming video: Netflix itself said that, in 2014, the average customer had a carbon footprint of 300g per year. Though, it must be said, that didn’t factor in the power consumed by devices — just the energy used delivering the service itself.
Netflix has since made its service carbon neutral, including the power it uses through Amazon Web Services and its own Open Connect program. Greenpeace did give Netflix a D in its annual report of tech companies’ environmental practices. The report that the firm has attained some of its carbon neutrality by buying offsets rather than encouraging its cloud providers to switch to cleaner energy source. That includes Amazon Web Services, which earned a C in the same report. (Amazon chief executive Jeffrey P. Bezos is the owner of The Washington Post.)
Watching television: The power consumption, and therefore the carbon footprint, of your television obviously depends quite a bit on what kind of television you have. If you want to find your own television’s consumption, try heading to the EnergyStar website, which will let you find products that have been certified as energy-efficient and give you their consumption information.
Again referring to Berner-Lee’s book, an hour of television viewing on an old 32-inch CRT television was rated at 84g CO2e for an hour’s worth of watching television, while a 15-inch LCD television generated 37 g. A 42-inch plasma television, however, generate the most with 240g CO2e.
more at: https://www.washingtonpost.com/news/the-switch/wp/2017/01/25/how-bad-is-email-for-the-environment/?utm_term=.088286dafa64&wpisrc=nl_draw2&wpmm=1