On average, every person on Earth needs 2.2 hectares, but the planet has only 1.8 hectares of capacity. That means demand is 25 per cent greater than resources.
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This time, the Emirates' average footprint is a whopping 11.9 hectares, but a small population means its global impact is small. The extravagant American lifestyle requires 9.6 hectares and that heavy footprint combines with its 294 million population to make it by far the biggest drain on Earth's resources.
China has a small average footprint of about two hectares but its 1.3 billion people give it a massive total impact, and rapid economic development is swelling its footprint.
The average Canadian's lifestyle requires 7.6 hectares, a figure that dwarfs the international average and Earth's capacity. And it continues to expand: In 1998, it was less than six hectares.
Someone recently asked if we should inform our users that monitors in screen-save mode reduce energy consumption by only a few watts. At $.105 per kilowatt hour (kwh), turning off a 75-watt monitor outside 40 hours a week saves $4.38 a month (42 kwh). This saves 750 lb. of CO2 (greenhouse gas emissions) by burning 450 fewer pounds of coal each year! Flat screen monitors consume about one third this much energy.
Some typical consumption levels for computer equipment are:
* desktop computer: 60w (watts)
* CRT (Cathode Ray Tube) monitor: 75w
* flat screen monitor: 25w
* laserjet printer: 7.2w
Using a 120-volt wattmeter borrowed from the public library, I made a quick check of some high-profile energy-consuming items at home, revealing the following:
* 32” television set: 90w
* coffeemaker: 980w brewing, 2w warming
* microwave: 1950w
* fan: 95w on low, 125w on medium, 180w in high
* 100w-equiv. compact fluorescent light bulb: 22w
* 17” Dell monitor: 84w active, 74w blank blue, 67w blank black, 69w screen-save, <0.1w active-off (standby)
* Laptop computer: 60w active, 25w idle, 1.6w standby mode.
* Dot-matrix printer: 3w idle; 13w max
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I'm a Canadian, married to an American, living in North Carolina since October 2004. To anyone who thinks this wouldn't be such a big difference in lifestyle, wow! think again!
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