I suspect we, i.e. the human race, are scuppered unless we can initiate some drastic changes in our life style and chances are not looking good. If we look at possible changes in motorised traffic, i.e. the motor car that we will have to make to reduce carbon dioxide production seriously it is going to be the equivalent of pushing a pea up Mount Everest with one's nose while blindfolded.
Can we give up the car or at least cut down on its use? I have my doubts. We live in a small German town that is flat. There are two or three hills in the town: bridges over the autobahn. You'd think an ideal spot to cycle or even walk. There are adequate pavements/footpaths as long there is room to get past, but it is a local habit to park with two wheels on the pavement/sidewalk to keep the road clear, but of course blocking the walker or the pram pusher. A goodly proportion of our neighbours drive round to the supermarket and bakers around the corner which is less than five minutes walk away. When we walk across town I count the number of pedestrians and cyclists and the number of cars, most of which have one person riding in them. I deliberately do not count the cars on the road connecting the two sections of bypass which we cross. In spite of this I normally see 50% more cars than walkers or cyclists. It is going to be difficult weaning people off the car.