The first of these would involve measuring greenhouse gas emissions (GHGs) related to your activities as a company, and the second involves measuring the GHGs over the life cycle of a product.
What is a carbon footprint for?
A carbon footprint is best used as a tool. If you understand where most GHG emissions come from, either within your company or in a product, you are much better placed to reduce them. You have the information you need to decide what areas to work on first and can develop a plan of action.
They are also used for reporting, either as a legal requirement or to provide information to stakeholders. And they can be used for fulfilling the information requirements for a certificate or label.
How do you measure a carbon footprint?
Measuring a footprint involves several stages:
Decide what you want to use it for, as this then defines the information you'll need