That's insane, I didn't realize it was that much. If we could see cars drop carbon turds on the road instead of venting it invisibly in the air we'd all be freaking out right now.
You could probably get a similar reaction if fossil fuel sales were given in the equivalent of trees or fuel crops. Someone might question running to the store just for donuts if they imagined burning half of a tree or 40 pounds of grain or something in the process, rather than just a bit of gasoline.
Honestly I was not even aware of that ... A quick search shows that a 100 yo birch tree stores only about 15 kg CO² ... So your half a tree seems to be in the right ball park.
Also ... CO² is bad ... but at least is non-toxic compared to some of the other side products.
Yep ... that's about two chocolate bars every kilometer ... and that has not really changed too much with newer motor generations as it is mostly a function of how much gas is used.
Yep, engines definitely have improved over time. Still the Corolla is producing about 80 grams of CO² per km (which in Germany is the benchmark to get a E-plate).
You can easily walk tens of kilometers in a day. 10 km us basically nothing, 20 km would be somewhat taxing if you are unprepared ... But some (crazy) people are doing 100 km walks for "fun".
which is crazy low if you put it in perspective and see that (gas powered) cars release about 0.2 kg of CO2 ... per kilometer.