“Lo and behold, we end up finding that we can explain this apparent discrepancy,” said Hilton. In other words, weathering of organic carbon amplified the warming initiated by volcanic CO2, so the planet warmed more than it would have if only the volcanic CO2 had been emitted.

Acid-digested rock samples being prepared for analysis using column chromatography.

Bob Hilton

Acid-digested rock samples being prepared for analysis using column chromatography.

Bob Hilton