This graph features atmospheric CO2 levels that combine measurements from as far back as 800,000 years up to the present day with an atmospheric temperature overlay option. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization.
Dr. Pieter Tans
NOAA's Earth System Research Laboratory
Dr. Jeremy Shakun
Boston College
Dr. Geoff Dutton
NOAA's Earth System Research Laboratory
Dr. Ed Dlugokencky
NOAA's Earth System Research Laboratory