Keeling's Curve – The Story of CO2

Context for Use: 

I do an entire lecture/lab with my university-level students on CO2 levels and the Keeling Curve. This video helps them visualize and understand the cause of the seasonal fluctuations in the CO2 record that take place each year. Sometimes, I will also show this 3-minute NASA video from 2014 called A Year in the Life of Earth's CO2 (An ultra-high-resolution NASA computer model that shows how carbon dioxide in the atmosphere travels around the globe). There are supporting materials on the PAESTA website, such as an exercise in the PAESTA Classroom titled CO2 Concentration and the Keeling Curve from the Mauna Loa Observatory, and a PAESTA Podcast titled How Do We Know CO2 is Increasing?

Recommended Grade: 
High School