Frequently Asked Questions

Many people wonder about how we get our figures and the averages used to create the carbon emissions equivalent amounts for each trip. 

Here are some of the most commonly asked questions. 

What Modes of Transportation Does the Tool Utilize?

Map My Emissions allows users to choose from a variety of transport options, including driving passenger vehicles, aircraft, public transportation and biking and walking.

Each category asks various questions about the mode of transportation you’ll be using for your trip, and can incorporate multiple modes.

The main categories include:

·   Air

·   Passenger Vehicle

·   Railway Travel

·   Biking

·   Walking

Within each category, users may stipulate the type of vehicle being used for the transport, such as a Tesla or Honda Civic, or private jet or large passenger airliner.

The emissions calculations are based on the latest information of miles per gallon.

When Choosing the Cycling Option, What Does the Map Show?

When you choose the biking option, you will see a manual bicycle-friendly route including alternative paths.

Colors are used to indicate roads that are more cyclist friendly.

  • Dark green – No vehicles allowed.
  • Green – Roads with a separate bike lane, but shared with passenger and commercial vehicles
  • Dotted green line – Roads with no bike lane, but are rated friendly for cyclists.
  • Brown – Off-road dirt and gravel routes.

Can I Enter Multiple Destinations?

Currently, multiple destinations aren’t included. But there is no limit to the number of free travel routes you can create.

What Greenhouse Gas Emissions Are Included in the Calculation?

The emissions in the measurements of CO2 -e include all greenhouse gases, including carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), Ozone (O3), Chlorofluorocarbons (CFCs), and hydrofluorocarbons (including HCFCs).

What Units Are Emissions Shown In?

Emissions are shown in pounds of carbon dioxide equivalent (CO2-e), but there is an option that allows you to choose kilograms of CO2-e for your trip.

How Accurate Are The Emissions Calculations?

Measurements are based on average vehicle mileage ratings, and the scientific measurement of emissions created during combustion of specific fuels.

Measurements for electric vehicles are based on global electricity grids and the fuel used to generate power, based on the travel destination.