Carbon Foot Prince

Personal Transportation Carbon Tracker

Use your Google location history data to calculate the carbon footprint of what moves you. All analysis is done offline on your computer, so your data stays yours.

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What is Carbon Foot Prince?
How can I be sure my location data does not leave my computer?
How do I improve this open-source project?
Is the calculation reliable?
Carbon Foot Prince
Just as Google Location History makes you confront just how much of your life story is stored on corporate servers, Carbon Foot Prince is a tool to get familiar with your personal carbon dioxide ouput. This tool personalizes the toll your fossil-fueled movement takes on the global climate based on activity recorded in your location history– and it does this all offline.

Read more from this FAQ, or ask a question by creating a new issue on this project's code repository.
Your data does not leave your computer. Trust me, I'm a developer ;) But seriously, I understand the sensitivity of your location history data, so this tool is specifically designed to do all of the analysis on your computer – it is not sent to external servers. I do collect anonymous usage information, such as clicks, upload durations, etc. and send that to Google Analytics. I don't encourage you to trust me at face value, so I invite you to view the source code.
To simplify some calculations, the tool makes an assumption about the occupancy of your vehicle and matches it with emissions coefficients reported by Defra, then calculates your emissions per trip.
The estimates are based on figures published by U.S. and U.K. government agencies, Our World in Data, and the IEA.
Carbon Foot Prince is an fine-grained approximation tool– it is only as precise as the data provided to it permits it to be; sometimes, Google location history data have lots of gaps. Figure that the estimates presented to you will be quite conservative.
Roove for Improoment
Does something feels off? Is there a glaring typo I missed? Oh! Did you think of a great feature to add? Let's do better!
  1. Go to Google Takeout to download your Location History data.
  2. Deselect everything except Location History.
    1. Click Deselect all.
    2. Scroll until you find Location History and select it.
    3. Scroll down and click Next step.
  3. For Delivery method choose whichever method you'd like to receive the zip.
  4. For Frequency choose "Export once".
  5. Leave File type & size as ".zip" and "2 GB".
  6. Wait (up to 5 days) to receive your zipped file, then download the .zip file.
  7. Import it here using the button below.
Import file
Offset your carbon.
Your personal transportation over the past X years has emitted a conservatively calculated X Tonnes of CO2.

Climate change reinforces poverty and makes life worse for everyone. [1] [2] For as little as $10 USD/TonneCO2, you can offset your transportation emissions since 0000 for just $.

Donate to a project that will enable communities to develop sustainably here.
Donut Chunks
Is your donut chart dominated by 2 or 3 "chunks?" Flying on commercial airlines and driving a passenger vehicle typically accounts for the vast majority of your emissions.
Personal Transportation Emissions
your personal carbon output from personal transportation
USA Personal Transportation Emissions Per Capita
per-capita personal transportation in the USA
USA Personal Transportation Emissions Per Capita - 2015 Paris Climate Accords Goal
per-capita personal transportation in the USA annually reduced to goals set by the 2015 Paris Climate Accords
Global Personal Transportation Emissions Per Capita
per-capita personal transportation globally
Daily Emissions (kgCO2)
You can infer from your rich location and movement data how much carbon you released from fossil fuels to get around. You emitted a maximum of 00 kgCO2 in 0000 on WORST YEAR's MONTH, DATE.
Cumulative Emissions (TonnesCO2)
In 0000, you exceeded your annual personal transportation carbon allowance by January 1, emitting an excess 99 TonnesCO2. did not exceed your annual personal transportation carbon allowance. Nice job! The gradient of this chart projects the personal transportation goals of the 2015 Paris Climate Accords onto your year's emissions. When it turns from green to white, you have reached your annual carbon emission allowance for 0000. Once your carbon emissions exceed this budget, the gradient turns red.
What happens to all your carbon? [3]
In total, you emitted X kgtCO2 since 0000.
Half of your total, or X kgtCO2, will remain in the atmosphere, absorbing radiation.
A quarter of your total, or X kgtCO2 will dissolve into the ocean, acidifying it.
The remaining quarter, or X kgtCO2, will be processed by plants, producing oxygen and biomass.
Activity Breakdown
Literally, Tons Over the Years
Daily Emissions (kgCO2)
Cumulative Emissions (TonnesCO2)
0000: 0,000 Passenger Vehicle km