- https://www.globalco2initiative.org
- http://www.bapihvac.com/wp-content/uploads/2011/04/Altitude_Temperature_CO2_ALC.pdf
- http://www.caribic-atmospheric.com/elib/rev/Foucher_2011.pdf
- https://data2.gosat.nies.go.jp/gallery/fts_l3_swir_co2_gallery_en.html
- how does co2 vary with altitude
- NASA GLOBE, the Global Learning and Observations to benefit the Environment Program, is a worldwide program that brings together students, teachers, scientists and citizens to promote science and learning about the environment. The GLOBE data and information system contains over 130 million measurements from more than 10 million students in 113 countries around the world since its operation begun in 1995.
- NASA Flight Opportunities: https://www.nasa.gov/directorates/spacetech/flightopportunities/index.html