Couldn’t they have given out free or reduced price Crit’Air to the lowest earners and/or local residents? Similar to chèque énergie (winter fuel allowance), which is already means tested. This probably wouldn’t affect the goal of reducing polluting traffic by much.

Another great source is Henry Mayhew’s “London Labour and the London Poor”. https://en.m.wikipedia.org/wiki/London_Labour_and_the_London_Poor

How about the Gulf Of Alaska? Why isn’t it the Gulf Of Canada?