Yes The highest year-over-year increase in CO2 concentration was 2016-2017, and it's been on a downward trend since. The 2020-2021 increase was 30% smaller tha

Yes The highest year-over-year increase in CO2 concentration was 2016-2017, and it's been on a downward trend since. The 2020-2021 increase was 30% smaller than the peak. That's still a lot, about 3X 1970 levels, but if the trend continues at the current rate we should return to 1970 levels in 15 years, and that will be with more than double the world population and 30 times the world GDP.