Stats Verde September

Image: istockphoto.com/Kristen Johansen

(Sep 12, 2007) Curious about green? Here are some green stats and facts for you compiled by Mallet Consulting, writing specialists for the green building industry.

Estimated total number of trips on public transit in Canada , 2006 : 1.7 billion

Annual number of trips on public transit per capita in European cities larger than 1,000,000; 500,000-999,999; 250,000-499,999, respectively, 1999: 200.5, 171.3, 166.0

Annual number of trips on public transit per capita in Canadian cities larger than 1,000,000; 500,000-999,999; 250,000-499,999, respectively, 1999 : 101.4, 52.5, 29.9

Annual number of trips on public transit per capita in US cities larger than 1,000,000; 500,000-999,999; 250,000-499,999, respectively, 1999: 42.3, 12.3, 5.8

Passenger cars per 1,000 people, France , Canada and US, respectively, 2000: 483, 559, 776

Average fuel economy of a new car in the EU, Canada , US and Japan , respectively, 2002, in mpg: 37.2, 25.6, 24.1, 46.3

Average size of a new home in the US , 1970 and 2006, respectively, in sq ft: 1,400; 2,469

Number of people in the average US household, 1900, 1970 and 2002: 4.60, 3.11, 2.58

Amount of construction debris buried in US landfills annually, in tonnes: 112,000

Percentage of construction waste that is salvageable and reusable: 50

Percentage of construction waste that is recyclable: 45

Average number of mature trees used to construct a new 2,000 sq ft house: 33

Amount of solar energy that reaches the Earth’s upper atmosphere, in watts/m²: 1366

Percentage of energy reflected and absorbed by dust, clouds & the atmosphere: 45

Percentage of remaining energy lost when converted to electricity using current PV technology: 80-85

Maximum remaining energy available for electricity, during daylight hours, in watts/m²: 110-150

Approximate number of square meters of solar panels needed to power an average compact fluorescent lightbulb, an incandescent bulb, a toaster and an electric oven, respectively: 0.1, 0.5, 12, 40

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