# Research Outline

### Carbon Footprint Tracking

#### Goals

To inform a project by determining the carbon footprint associated with the usage of \$100 worth of gas, and the cost of remedying such footprint. An ideal response will include the methodology of footprint and offset cost determination/calculation.

### Carbon Footprint Data

• According to the US Environmental Protection Agency (EPA), 8,887 grams of Co2 is produced from a single gallon of gas (formally known as gasoline). This equates to 0.00887 metric tonnes of Co2 per gallon of gas.
• More simply, 1 gallon of gas produces about 8,700 grams of Co2.
• According to data from Global Petrol Prices, the average price of gas in the US over the last four months is \$2.956 per gallon.
• According to data from CoolEffect, an NGO that works to build carbon offset projects, offsetting a ton of Co2 costs between \$3 and \$13.

### Calculations

• \$100 worth of gas will be equal to (\$100 / \$2.956 per gallon) = 33.829 gallons.
• Since 1 gallon of gas produces 8700 grams of Co2, 33.829 gallons will produce 33.829 * 8,700 grams = 294,312.3 grams of Co2, or about 0.294 tonnes of Co2.
• The cost of offsetting 0.294 tonnes of Co2 ranges from \$(0.294 * 3) to \$(0.294 * 13) =\$0.882 to \$3.822.

### Summary

• The carbon footprint of \$100 worth of gas is about 0.294 tonnes.
• The cost of offsetting the carbon footprint of \$100 worth of gas (0.294 tonnes) ranges from under \$1 to about \$4.
• The research team leveraged credible and publicly available data and made reasonable mathematical approximations to arrive at the answer above.
• The geographical focus for this research was the US. If a different focus is required, please indicate this in any further correspondence.
• To provide more value to the goals of this research, please select the most appropriate of the below research suggestions.