Keeling 9/3/2019

Published in

Words

7

Reading

1 min

Listen

Play

8y

413.45 ppm CO₂ on 9/3/2019

(source: scripps.ucsd.edu)

This post was published via steemit. Ecency is not the originator or editor of this content and displays it for discovery purposes only.

$ 0.138

26

Keeling 9/3/2019 | Ecency