Catching up on #30DayChartChallenge, I guess this one combines the last 3 days themes: #OWID, hazards, humans.
I like how the smoother helps see the overall trend of ozone recovery since the Montreal Protocol was adopted and how the bootstrap confidence interval reflects recent variation. Puzzled/concerned by the low 2020/2021 values, though.
@xangregg
Maybe combine with world population over same timeframe. https://www.macrotrends.net/countries/WLD/world/population
World Population 1950-2023

Chart and table of World population from 1950 to 2023. United Nations projections are also included through the year 2100.