To produce these estimates, we’re combining data from the European Environmental Agency with the flight-specific information we get from airlines and other providers such as aircraft type, trip distance and the number of seats in each seating class. To learn more on how we estimate emissions, visit our Help Center.

It’s critical that people can find consistent and accurate carbon emissions estimates no matter where they want to research or book their trip. That’s why we recently joined the Travalyst coalition, where we’ll help develop an open model for calculating carbon emissions from air travel and promote standardization across the travel industry using this framework.

This update to Google Flights is just one of the many ways we’re helping people make sustainable choices in their everyday lives. Read the latest in this post from Sundar Pichai.

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