Springtime is usually beautiful in Mexico City. As the weather warms, the purple jacaranda trees that line boulevards and dot neighborhoods are in full bloom. Everything is prettier, says Fernando Padilla, a driver taking a break in a park.
"It's my favorite time of the year," he says.
But this spring, his eyes are watering, his throat hurts and one day a week he's not allowed to use his car on the road, which means he's poorer too.