O Say Can You CO2…

O Say Can You CO2…: Guest Commentary by Scott Denning The Orbiting Carbon Observatory (OCO-2) was launched in 2014 to make fine-scale measurements of the total column concentration of CO2 in the atmosphere. As luck would have it, the initial couple of years of data from OCO-2 documented a period with the fastest rate of CO2 increase ever measured, more than 3 ppm per year (Jacobson et al, 2016;[cite ref=Wang et al, 2017)]10.5194/esd-2017-46[/cite] during a huge El Niño event that ...