This is a very good animation showing forsit the measurements of the growth of CO2 in the last 30 years, followed by a look back at the estimated CO2 concentrations over the last 800,000 years.
https://www.esrl.noaa.gov/gmd/ccgg/trends/history.html
This is a very good animation showing forsit the measurements of the growth of CO2 in the last 30 years, followed by a look back at the estimated CO2 concentrations over the last 800,000 years.
https://www.esrl.noaa.gov/gmd/ccgg/trends/history.html