Through the Carbon Manager your purchases are assigned to a category. Using data across the economy we know that the average spend in that category equates to a certain amount of carbon emissions. So we’ve assumed that your purchase reflects the average. This means that sometimes we’ll over estimate your footprint, and sometimes under estimate.
We are always looking to update the Carbon Manager to make it easier for you to measure your carbon footprint, if you think there is a category we are missing then please get in touch at support@cogo.co.