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How to display carbon emissions from travel on your website using the Travel CO₂ Visualization Widgets

How to display carbon emissions from travel on your website using the Travel CO₂ Visualization Widgets

You can display travel carbon emissions for any trip on your website with the Travel CO2 Visualization widgets that let you embed bar charts, badges, bubble charts, receipts and more. Let us show you how that's done!

First you need to sign up to Travel CO2 and go to the Trip Creator. Free accounts for testing out the service are available.

1. The Trip Creator

The Trip Creator is used to search for trips and calculate their emissions.

Travel CO2 Trip Creator
Screenshot of the Travel CO2 Trip Creator

1.1 Choose between comparing transport types, or displaying a single trip

You can either compare several transport types for the entire trip, or click the Single Trip button where you will be able to create a journey with different transport types between each step. For example, driving from Copenhagen to Amsterdam and then flying from Amsterdam to Berlin.

1.2 Settings


Pick a title for your trip, it will be displayed when you are embedding the trip on your website, and in My Trips on the Travel CO2 website. 


The language will be used for placenames (i.e. Germany vs. Deutschland), fuel types, vehicles and other texts in the widgets. This can not be changed once it is set, so make sure to pick the right one. If you need a language not available in the list, contact us and we will add it.


This is used to add upp the calculated carbon emissions, but also to choose the number of cars needed on driving trips. All regular cars are calculated using a max capacity of 5 people and minivans have a capacity of 7. 


Is this a one-way trip, or are you going back the same way?

1.3 Transport types and Steps

Each step of the trip can have a location, transportation to the next step and/or accommodation. 

The transport input differs a bit if you want to compare transport types or if you want to specify a single trip with multitple transport types.


If you choose to compare transport types, you first select the transport types you want to compare. Uncheck any transport type you do not want to include in the comparison, or click the Advanced Settings to enable the choice of vehicles, fuels, flight types, airport transfers, maximum number of people per vehicle and additional transport types to compare.


If you choose to create a single trip, the choice of transport is instead on each step of the trip. Select the type of transport that is used to get from this step to the next step.


Accommodation can be added on any step along the trip.


You can add up to five steps on a trip by clicking the Add New Step button. It will be added to the end of the trip.

1.4 Search for trip emissions

Click the Find Trip & Emissions button to search for trips and calculate their emissions.

Trip Creator Preview
Trip Creator Preview

1.5 Save the trip

If everything looks ok in the preview, click the Save & Share Trip button to save the trip to your account.

2. My Trips

Saved trips will be available in My Trips. So go there and have a look.

A trip in My Trips - Travel CO2
A saved trip displayed in My Trips

2.1 Select widget style

In the dropdown, choose the visualization style you want to embed and then click the Show embed code button.

2.2 Copy the embed code

A popup opens, displaying a preview of the widget and a box with the widget code. Copy this code to the clipboard.

3. Embedding on your website

On your website, paste the code where you want to place the widget. If you are editing a page in a content management system, note that you may have to choose View HTML or View Source Code or something similar before pasting the code.

That's it for this guide. If you need any help with creating or embedding the Travel CO2 widgets, contact us and we will assist you!