** use of the graphic, rather than a clickable email address, is to reduce the environmental impact of software robots that are used to scan website pages in order to generate spam email. According to a Guardian report that cites McAfee (http://tinyurl.com/m7j7bpf), the average email has just one-sixtieth the carbon footprint of a physical letter but the truly huge volumes of spam email really add up and here’s how :
An incredible 78% of all incoming emails are spam. Around 62 trillion spam messages are sent every year, requiring the use of 33bn kilowatt hours of electricity that, alone, generates around 20 million tonnes of CO2 per year. McAfee estimated that around 80% of this electricity is consumed by reading and deleting of spam and searching through spam folders to dig out genuine emails that ended up there by accident. In terms of emissions, each spam email generates 0.3g of CO2 and, if you believe the Radicati report, at close to 2.8 million emails every second (mostly spam) equates to 840,000g of CO2 per second or 72,576 tonnes of global CO2 emissions per day JUST for the spam email.
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