F07.ES204.Intro - Environmental Science 204 Ecology and the...

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1 Environmental Science 204 Ecology and the Biosphere In the Past Hour (World)… ± World Population: grown by 8,500 (all 2006) ± 15,000 births ± 6,500 deaths ± 200 from air pollution ± 700 children from hunger ± 330 from AIDS
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2 In the Past Hour (World)… ± Food Consumed: ± Fish & Shellfish - 35 million pounds (2004) (13 million pounds farmed) ± Meat - 63 million pounds (2006) ± Grain - 470 million pounds (2005) ± Coffee Beans - 340,000 lbs (2002) ± Ice Cream - 650,000 quarts ± Fertilizer Use: 35 million pounds ± Forests Cut: 20,000 acres (1,000,000x size of this room!) (2000) ± Extinctions: 1-3 species ± Paper/Wood Consumed: 250 million pounds ± Steel Production: 283 million pounds (2006) ± 5600 Cars Produced (2006)
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3 In the Past Hour (World)… ± 5,000 cars rolled off the assembly line (2004) ± $50 million spent on advertising (2002) ± Carbon Dioxide: 1.7 billion pounds added to atmosphere (US - 25%) (2005) (U.S.)… ± Energy Use: 2 million barrels oil equivalent (2005) (9/24 - $81/barrel = $162 billion!) (World: about 4x US) ± Water Use: 16 billion gallons (2000) (almost 1 million gallons bottled water (2005))
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4 In the Past Hour (U.S.)… ± Threw Away: ± 50 million pounds municiple trash (4.5 lbs person day) (2001) ± 3 billion lbs mining/industrial/agricultural waste ± 11 million pounds paper ± 2.5 million plastic bottles ± 2,300 computers ± 2 million pounds packing peanuts ± 21 million pieces of “junk mail” ± 170,000 pounds of edible food Before you get depressed…
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5 Scientific Method •Raise question •Gather data •Raise question •Gather data •Form hypothesis •Test and modify hypothesis •Scienti f c Theory •Scienti f c Law
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This note was uploaded on 01/11/2012 for the course ENVSCI 204 taught by Professor Robviens during the Fall '07 term at Bellevue College.

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F07.ES204.Intro - Environmental Science 204 Ecology and the...

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