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CO2 Facts [Updated: Apr 2022]

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Updated on 27 Aug 20183 min read

What is CO2?

CO2 is the chemical formula for carbon dioxide, a gas emitted when carbon-based fuels like diesel, aviation fuel, or gasoline are burned to generate energy. Most trucks, aircraft, and ships use carbon-based fuels.

What is CO2 Emission

What is CO2e?

CO2e or “carbon dioxide equivalent” is a standard unit for measuring carbon footprint. Agility uses CO2e to measure greenhouse-gas impact (from all types of greenhouse gas) by equating it to the amount of carbon dioxide that wouldcreate the same amount of warming. Our CO2e emissions reports express various greenhouse gases askilograms of an equivalent amount of CO2.

What other gases are included in CO2e estimations?

Aside from carbon dioxide, there is a range of other greenhouse gases, which includes sulfur dioxide, nitric oxide, and nitrogen dioxide. Each of these gases can cause warming when emitted into the atmosphere.

How does Agility measure CO2e emissions?

We use the UK Department of Environment, Food and Rural Affairs’ (Defra) methodology, standards and conversion factors to estimate CO2e emissions from customers’ transportation activities. You can learn more about Defra methodology and conversion factors here.

Measuring CO2 Emissions

Why do we provide CO2e emissions estimates to our customers?

We provide these estimates to help our customers understand how their operations may affect our climate. This gives them the opportunity to make informed decisions about reducing emissions and so contributing to environmental improvement.

What does "CO2e emissions estimate" mean?

This means that when transporting your shipment with Shipa Freight, the process will create “at least” the amount of CO2e emissions reported by our app. It is likely that the Shipa Freight CO2e emissions estimate for your shipment will be understated, as it does not cover all activities and variables related to the shipment.

For example, our report does not include emissions related to storage or warehouse activities, or the effects of radiative forcing in air transportation. The report is also based on average—as opposed to actual—truck utilization, fuel consumption, and other technical variables that may influence CO2e emissions measurement.

Can I use my CO2e Report for Offsets, or Payment of Carbon Taxes or Fees?

If you are voluntarily offsetting CO2 emissions by planting trees or investing in renewable energies, you can use these reports for such offsets, provided you indicate in the offsets that there were likely more CO2e emissions than estimated, and factor our “at least” approach into your voluntary offset strategy.

These reports are not appropriate for carbon taxation, mandatory carbon fees or charges, or involuntary offset programs. To reiterate, we consider our reports to represent an “at least” amount of CO2e emissions. You should always assume that your actual CO2e emissions are higher than the reported estimates.

CO2 Emission Estimate Report

How can I learn more about Agility’s sustainable shipping & CO2e emissions reporting?

Would you like further information about our CO2e emissions estimation & reporting program?

Perhaps you’re curious about shipping-solutions that are less carbon-intensive.

You’ll find plenty of information about these topics on our sustainability web page, or you are very welcome to email us with your questions at