Transport is one of the easiest to substitute with alternative means in many parts of the world. Then you don't have the CO2 from manufacturing the car (electric or not) and you don't produce any while traveling. My family and I decided to get rid of the car 3 years ago and we didn't look back. We are fortunate enough to live in an area with acceptable public transport and we got ourselves bikes as a supplement. We ended up renting a car 2 times in 3 years, one of which was a moving van. Won't work for people living in remote areas, but it's doable for many.

We have also not used a plane in the last 4 years, but that's something many won't be willing or able to do.

It's at least worth thinking about if nothing else.