Name _________________________________________________________ Period ________________

 

How to Calculate Your Carbon Footprint

Human Connections to the Carbon Cycle

 

You will need to figure out your carbon footprint or how much carbon dioxide you add to the atmosphere.  This worksheet must be done as soon as possible because some of these steps will take several weeks to get the information back to you.  You may also need your parents to help you with some of these steps!

 

TRASH

Hint:  A typical kitchen size trash can is 13 gallons or a typical trash can contains 32 gallons.

1.      How many gallons of trash does your family go through each week?    _______________________

2.         Once you have the gallons of trash, multiply that number by 101.92 as this is the pounds of CO2 per gallon of  trash

3.      ________________ (# of gallons)  X  101.92 =  ____________________ lbs CO2

 

ELECTRIC & GAS

Call your electric and gas companies and ask them for a 1 - 2 year history of your usage. You should get it in a few days.  Or use the last few statements to get an annual estimate or go to your account online.  Electric Companies: Duke Energy 800-521-2232 or   IPL  317-261-8222.  Gas Companies: Vectren 800-227-1376 or Citizens 317-924-3311 or go to citizensgas.com, account information, Bill analyzer to get information.

 

1.      Electric:  What is your average Household kWh usage per year? ________________________

2.      __________________ (kWh per year)  X   1.4 lbs CO2 per kWh = _______________ lbs CO2

 

Your account will information will either be in Therms or CCF.  If your gas is measured in a CCF (cubic foot), then look on your bill and find the BTU factor.  The CCF X the BTU factor = Therms. 

 

CCF __________ X __________ BTU = _____________ Therms. (you may not have to do this!)

 

3.       What is your average Therms of Natural Gas used per year? ______________________

 

4.      __________________ (Therms / year)  X  11.7 lbs CO2 per Therm of NG = _____________ lbs CO2

 

CARS

Estimate your weekly/annual mileage and fuel efficiency for each of your cars.  Ask your parents or guardian what is the average number of miles they drive per week. 

1.      Car #1:  Average number of miles per week: __________ X 52 = ______________ miles per year

2.      Car # 2:  Average number of miles per week:  _________ X 52 = ______________ miles per year

Next you will need to find the average gas mileage for your cars.  Go to the following website and follow the steps below to help determine it.  http://www.fueleconomy.gov/

 

a.        Click on YOUR MPG (Miles per Gallon) on the bottom left hand side of the page. 

b.      Select the Car Make

c.       Select the Car Model

d.      Find the Correct YEAR your car was made. 

e.       Write down the first number in RED, which is the average gas mileage of the car. 

f.       REPEAT this process for the second car.

3.      Average MPG for Car # 1: ______________________________________________

4.      Average MPG for Car # 2:  ______________________________________________

Car #1: 

5.      ________________ (ave miles driven / year) ÷________________ (average MPG) = ____________

 

Take the total from above and multiply it by 19 because there is 19 lbs CO2 used per gal of gas

 

6.      Car # 1 uses ________________________________ lbs CO2 per gal of gas

Car #2: 

7.      ________________ (ave miles driven / year) ÷  ________________ (average MPG) = ____________

 

Take the total from above and multiply it by 19 because there is 19 lbs CO2 used per gal of gas

 

8.      Car # 2 uses ________________________________ lbs CO2 per gal of gas

 

AIRPLANES:

You will need to figure out approximately how many airplane miles you and your family traveled in the past year.  If you need help go to http://www.webflyer.com/travel/milemarker/ Simply type in your city of origin and then your destination.  DON’T FORGET you want the round trip distance.

 

  1.  I traveled _____________________________ TOTAL air miles this past year.

 

  1. The rest of my family traveled ________________________ TOTAL air miles this past year. 

 

  1. ________________ (total miles for everyone) X 1 lb CO2 per air mile = __________________ lb CO2

 

FINALLY:

 

Go to the following website and enter ALL of the above information, following the directions, in order to get your CARBON FOOTPRINT! Only works with Internet Explorer!!

 

http://www.empowermentinstitute.net/lcd/lcd_files/LCDcalcNet.html

 

** Make sure you keep the ZERO’s in the boxes for those things that you did not have to figure out.  For example you did not have to find gallons of propane or gallons of fuel, so leave the zeros in the box. Tab through the boxes so it calculates correctly. PRINT YOUR RESULTS AND STAPLE TO YOUR PAPER!!

 

  1. I use a total of ____________________________ lbs. of CO2 per year. (or Total Emissions)
  2. Based on my current lifestyle practices I am at level __________ out of 10.
  3. My goal is to reduce my annual CO2 emissions by ______________pounds.

 

HOW MANY PLANETS DO YOU NEED?

Go to the following website and take the quiz to find out how many earth’s you need to support your current lifestyle.  http://www.footprintnetwork.org/en/index.php/GFN/page/calculators/  PRINT YOUR RESULTS AND STAPLE TO YOUR PAPER!!

 

How many planets would it take to support you?   ___________________________________