GEO 702 Lecture Notes - Lecture 3: Online Banking, Soil Contamination, Global Warming
14 Oct 2018
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Document Summary
Positive and negative aspects of technology on environment. We are living in information and computer age. The computers and its technology change fast. 77% of world population owns mobile/ cell phones. Every single computer requires about 1. 8 tons of chemicals, fossil fuels, and water for its manufacture. Mobile phones and cell towers: effects of mobile radiations on, farm animals, birds, honey bees. Emission of about 0. 1 ton of carbon dioxide in a year. 2% of world"s total carbon dioxide emissions. E- waste discard and disposal including batteries. The crt"s which contain significant amounts of lead. Lcd"s are illuminated by mercury- filled panels. Circuitry contain chromium, copper, and lead that exceed regulatory limits. Reduction in paper consumption: use of digital database, use of e- books, less letters, more calls, sms"s, and emails, less greeting cards, more online and text wishes. Reduction of wiring and printing inks: using emojis.
