Sure.
To answer what scope 3 emissions are, it's probably easier to say what scope 3 emissions are not. Scope 1 emissions are fuel reburn, so gasoline, natural gas, etc. Scope 2 emissions are from energy we use indirectly: electricity. We have scope and control over that because we can decide how much gasoline and how much electricity we use. Scope 3 emissions are from all those indirect things: if we fly somewhere, if we use a service. Other companies are creating those emissions. Because those emissions are indirect and are created by somebody else, it makes measurement of them more difficult.
We have been tracking those emissions, and we have basically worked with an association out of the Université de Montréal called Polytechnique and two Swiss universities. They have looked at our procurement over three years, and they have basically helped us develop those procurement-related emissions. It's true that we had not published it, but we have now taken the information and put it on the web.
As the secretary mentioned, too, we're looking at commuting because in the hybrid environment, people are working from home and they're working from the office, so it's more sophisticated. We need to understand the global emissions, how much you emit working from home compared to the office.