Table 2. Summary of Regional Trends and Driving Factors


Region	CO2 Flux Trend (mol/m2/decade)	Correlation With POC Flux	Major Controls on CO2 Flux

Crozet-Kerguelen	0.14	-0.97	The trend was mainly driven by biological pump.
South Georgia	not significant	-0.94	Variability is largely explained by the biological pump, but there was no significant trend in CO2 flux.
Midlatitude Pacific	0.04	not significant	The increased CO2 outgassing was mainly driven by stronger winds and upwelling.
High latitude Pacific	-0.09	not significant	The trend in CO2 flux was dominated by the increase in anthropogenic CO2 uptake.
Western Antarctic Peninsula	not significant	-0.77	Variability was largely explained by the biological pump, but there was no significant CO2 flux trend.
Western Ross Sea	-0.15	-0.81	The trend was mainly driven by the biological pump.