I Am Not A Climate Scientist. If you take issue with the 3 scopes model of greenhouse gas emissions, go argue with the EPA. Here's their explainer on it:

https://www.epa.gov/greeningepa/greenhouse-gases-epa

There are many more academic sources just a duckduckgo search away. (Or Bing, I guess) personally I find the MS blog explanation really clear, but obviously the EPA or a peer reviewed climate science journal are more reliable sources.