Scripps Institution of Oceanography, UC San Diego*CO2 Now: Annually-updated version of the Keeling curve*Climate Change Is Clear Atop Mauna Loa, NPR, Day to Day, May 1, 2007*Scripps Institution of Oceanography CO2-Program: Home of the Keeling Curve*Keeling Curve throughout the years
* Углекислый газ* Атмосфера Земли* Climate Change Is Clear Atop Mauna Loa, NPR, Day to Day, May 1, 2007* Scripps Institution of Oceanography CO2-Program: Home of the Keeling Curve* Earthguide educational resource* The Keeling Curve Turns 50 — "Scripps Institution of Oceanography"