Every so often, the e-media vs. paper-media debate flares up again. We’ve covered it a few times on this blog, including a One Degree TV clip of our conversation with Brad Robertson of GannettLocal. Earlier this year, in a post about the growing landscape of E-readers, we noted that it was easier to measure the considerable environmental impact of the publishing world, from deforestation, to waste water and carbon emissions. Measuring the relative impact of E-readers (from manufacturing to daily use) was, at least then, more difficult. Last week, Brian Palmer examined this question in his piece for Slate, Should You Ditch Your Books for an E-reader? As the infographic (left) suggests, the planet might prefer you to read your books electronically.
Palmer explains, ”environmental analysis can be an endless balancing of this versus that. Do you care more about conserving water or avoiding toxic chemical usage? Minimizing carbon dioxide emissions or radioactive nuclear waste?” But, in quoting Cleantech, which aggregrated a series of studies on this subject, Palmer delves into the numbers that shapes this debate.
A few excerpts from Palmer’s piece for Slate:
A single book generates about 7.5 kg of carbon dioxide equivalents—the value of all its greenhouse gas emissions expressed in terms of the impact of carbon dioxide. That includes production, transport, and either recycling or disposal. (Attention students: Your textbooks are particularly bad, releasing more than double the CO2 equivalents of the average book.)
Apple’s iPad generates 130 kg of carbon dioxide equivalents during its lifetime, according to company estimates. Amazon has not released numbers for the Kindle, but independent analysts put it at 168 kg. Those analyses do not indicate how much additional carbon is generated per book read (as a result of the energy required to host the e-bookstore’s servers and power the screen while you read), but they do include the full cost of manufacture, which likely accounts for the lion’s share of emissions. (The iPad uses just three watts of electricity while you’re reading, far less than most light bulbs.) If we can trust those numbers, then, the iPad pays for its CO2 emissions about one third-of the way through your 18th book. You’d need to get halfway into your 23rd book on Kindle to get out of the environmental red.
Water is also a major consideration. The newspaper and book publishing industries together consume 153 billion gallons of water annually, according to the nonprofit Green Press Initiative. It takes about seven gallons to produce the average printed book, while e-publishing companies can create a digital book with less than two cups of water. (E-book publishers consume water, like any other company, through the paper they use and other office activities.) Researchers estimate that 79 gallons of water are needed to make an e-reader. So you come out on top, water-wise, after reading about a dozen books.
E-readers also have books beat on toxic chemicals. The production of ink for printing releases a number of volatile organic compounds into the atmosphere, including hexane, toluene, and xylene, which contribute to smog and asthma. Some of them may also cause cancer or birth defects. Computer production is not free of hard-to-pronounce chemicals, to be sure, but both the iPad and the Kindle comply with Europe’s RoHS standards, which ban some of the scarier chemicals that have been involved in electronics production. E-readers do, however, require the mining of nonrenewable minerals, like columbite-tantalite, which sometimes come from politically unstable regions.
[Source: Slate]



































