Ferdinand Engelbeen, Renee Hannon, and David Burton

December 2024

Since the beginning of the Industrial Revolution in the late 1700s, the average concentration of Earth’s atmospheric carbon dioxide (CO2) has increased by about 140 parts per million by volume (ppmv) to the current amount of about 420 ppmv. This is much higher than concentrations of the past 800,000 years, which rarely exceeded 300 ppmv, according to ice core data. In this document, the CO2 Coalition presents multiple lines of scientific evidence demonstrating conclusively that the modern increase in CO2 is mainly due to anthropogenic emissions.

Read the complete publication here:

Human Contribution to Atmospheric CO2-digital-compressed