"NASA plans to launch the Orbiting Carbon Observatory (OCO-2) satellite and install a new instrument (OCO-3) on the International Space Station".
Both devices will periodically take snapshots of the “chemical weather” over population centers.“OCO-3 will have a ‘city mode’ where it rapidly starts sweeping back and forth like a whisk broom,” says Duren. He
the satellite to take some 3,000 samples over a city in just a few seconds.
There you go again they really really don't know and don't have.