Carbon Footprint Calculator

Length (# of steps)

Width (# of steps)

Length (feet)

Width (feet)

Area (sq. feet)

Carbon Stored (lbs/year)**

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Information Standard / Metric Zipcode:	Trees	Turf Grass	Automobiles	Results

Add Trees

Measure the circumference of each living tree in your yard at a height of 4.5 feet (4 feet, 6 inches) above the ground level.

In the list below, enter the number of trees whose circumferences are within each size class.

The approximate amount of carbon taken up by the trees will be calculated automatically by a formula that uses the diameter (in forestry, this is called “diameter at breast height”, or DBH.) The circumference, which you measured, is related to the diameter according to the equations at the right of the chart.

Circumference	# Trees
Less Than 10"
10" to 19.99"
20" to 29.99"
30" to 39.99"
40" to 49.99"
50" to 59.99"
60" to 69.99"
70" to 79.99"
80" to 89.99"
90" to 99.99"
100" to 109.99"
110" to 119.99"
120" to 129.99"
130" to 139.99"
140" to 149.99"
150" to 159.99"
160" to 169.99"
170" to 179.99"
180" to 189.99"

Add Turf

First, measure the length of your stride. Walk five steps and measure the distance that you have walked

Enter the distance of your five steps (in feet):

Then, choose up to ten of the largest expanses of grass in your yard. Walk the length and width of each one, counting your steps. When you enter these measurements, the calculator will convert the length and width from number of steps to feet.

Carbon emissions by turf maintenance activities
Fossil fuels are used to produce fertilizers, thus releasing carbon into the atmosphere.

What area (in square feet) of your lawn is fertilized:	never?
	moderately (once or twice per year)?
	heavily (more than twice per year)?

Nitrogen is essential for plant growth, but some of the nitrogen in fertilizers can be released into the atmosphere as nitrous oxide, which is a greenhouse gas. Based on the amount of fertilizer applied to your lawn, about

Lawn mowers can also use fossil fuels that release carbon into the atmosphere.
The average lawn is mowed about 26 times per year.

How many times per year is your lawn mowed with:
a gasoline-powered lawn tractor (riding mower)?
a gasoline-powered walk-behind (push) mower?
a battery-powered mower?
an electric mower with a cord?
a nonpowered push mower?

Total Area (sq. feet):

Carbon Storage Total: Pounds of Carbon per year
Producing this amount of fertilizer emits about pounds of carbon per year.***

pounds of carbon dioxide, or pounds of carbon.
The fuel used by mowing emits about pounds of carbon per year.

Carbon Emissions by AUTOMOBILES

When cars use gasoline, carbon is emitted into the atmosphere. For each car that your family drives, enter the approximate number of miles driven and the fuel efficiency (miles per gallon). Then, in the "diesel or gasoline" column, click to select which fuel type your vehicle uses. The amount of carbon produced by your cars will be calculated automatically.

Car #	Miles driven per year	Fuel Efficiency (miles per gallon)	Gasoline or Diesel	Carbon Produced (lbs/yr)
1			Gas or Diesel	-----
2			Gas or Diesel	-----
3			Gas or Diesel	-----
4			Gas or Diesel	-----
5			Gas or Diesel	-----
		Total: 0 pounds of carbon per year

For a more comprehensive assessment of your family's carbon emissions, check out the calculators at

http://www.epa.gov/climatechange/emissions/ind_calculator.html
http://www.nature.org/initiatives/climatechange/calculator/
http://www.climatecrisis.net/calculate-your-impact.php

Note: some calculators give results in units of CO2. 44.01 pounds of CO2 = 12.01 pounds of carbon.

Carbon Footprint of your Home Landscape per year
Carbon Storage
Trees:	000 pounds of carbon
Turf Grass:	000 pounds of carbon

Carbon Emissions
Fertilizer Production:	000 pounds of carbon
Nitrous Oxide:	000 pounds of carbon equivalent
Lawn Mowing:	000 pounds of carbon

After subtracting carbon emissions due to maintenance, your landscape stores 000 pounds of carbon from the atmosphere each year. This is the equivalent of 000 pounds of carbon dioxide.

Trees		Turf		Auto
Your CO2	Average	Your CO2	Average	Your CO2	Average

0 lbs CO2	0 lbs CO2	0 lbs CO2	0 lbs CO2	0 lbs CO2	0 lbs CO2

After subtracting carbon emissions due to maintenance, your landscape stores LSCO pounds of carbon from the atmosphere each year.
This is the equivalent of EOCO pounds of carbon dioxide.