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Do Now

Do Now. Do you think your lifestyle is harming the Earth? Think of what you eat, your mode of transportation, how much water do you use, how much garbage do you produce… What are two ways you can improve your lifestyle to benefit the planet?. Carrying Capacity & Ecological Footprints.

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Do Now

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  1. Do Now • Do you think your lifestyle is harming the Earth? • Think of what you eat, your mode of transportation, how much water do you use, how much garbage do you produce… • What are two ways you can improve your lifestyle to benefit the planet?

  2. Carrying Capacity & Ecological Footprints

  3. Carrying Capacity • The maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment.

  4. Limiting Factors • Causes the population to decrease • Examples: • Food • Shelter • Water • Space

  5. Video • http://www.youtube.com/watch?v=E8dkWQVFAoA • Guided notes

  6. Ecological Footprint • The impact of a person, or community, on the environment, expressed as the amount of land required to sustain their use of natural resources.

  7. Who uses the most resources?! • Footprint analysis is useful for determining to what extent a nation uses more (or less) than is available within its borders – Who uses the most resources?

  8. Calculating our own Ecological Footprint • You will calculate how many Earths would be needed if every person on the planet lived the way you do… • Consider your actions and score yourself based on the action that fits you best. Scores are noted in (parentheses) next to each action.

  9. Calculating our own Ecological Footprint • Example: Water Use My Score: __50___ • My shower (or bath) on a typical day is: • No shower (0) • Short shower 3-4 times per week (25) • Short shower once a day (50) • Long shower once a day (70) • More than one shower per day (90)

  10. Continue this through Water Use • Once you have completed this for Water Use questions 1-5, add your scores up and record it in the grey box. • If there is a negative sign (-) next to a number, be sure to subtractthat number.

  11. Complete • Repeat this method for the rest of the survey • Finally, add the totals for each category in the grey box on page 2. • Divide your GRAND TOTAL by 300. • Calculators are in the blue bin on the counter • That is how many “Earths” you’d need if everyone was just like you!

  12. How do our results compare? • Whose lifestyle needs only one planet? • Whose needs more than 1? • 2? • 3? • 4? • 5?

  13. Online Footprint calculators • You can check your ecological footprint online as well. • www.myfootprint.org

  14. What can we do to help the planet? • Carbon offsets • Purchase carbon offsets and the money goes to providing renewable energy • Wind turbines • Hydroelectric power • Solar Power • Biofuel

  15. Exit Ticket • Name two ways you can decrease your carbon footprint.

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