Figure 8 Analysis of carbon sequestration and oxygen release (a. Distribution of carbon sequestration, and a box and line plot of carbon sequestration for the six climate zones, corresponding to the three priorities for sequestration in each zone; b. Distribution of oxygen release, box and line plot of oxygen release for the six climate zones, corresponding to the three priorities for oxygen release in each zone; c. City-averaged carbon sequestration and oxygen release in each climate zone)