Scope 1 emissions are greenhouse gas emissions that you create directly – like those created when you drive a petrol or diesel powered vehicle.
Scope 2 emissions are indirect emissions – those that are created by your suppliers of electricity (and other things such as steam, heat, and cooling).
Scope 3 emissions are also indirect emissions, but these are the ones associated with all the goods and services that you consume, or – for a business – those that are associated with its value chain.