Assertion: atmospheric carbon dioxide | /r/HasProperty | about 320 ppm
Facets:
value: in 1965
type: TEMPORAL
Source sentences:
text: And if we cross-check the data from the Mauna Loa Observatory, we see that atmospheric carbon dioxide was about 320 ppm in 1965 and is just above 390 ppm in 2012.
text: And if we cross-check the data from the Mauna Loa Observatory, we see that atmospheric carbon dioxide was about 320 ppm in 1965 and is just above 390 ppm in 2012.