That was my original question. Do you make those calculations based on the amount of tier 4, 3, 2, and 1 vehicles that are on the roads today, or that are in industry, or the types of jet engines that are being used on commercial airliners, which all produce different amounts of greenhouse gases? Is all of that information factored into your production of greenhouse gas emissions data?
On April 24th, 2018. See this statement in context.