Scatter Plot from Scientific Research

Future cumulative carbon uptake in the NA versus future surface temperature changes in the NH. Shadings show the future changes of global mean surface temperature and its correlation coefficient with cumulative carbon uptake in the NA is -0.70, which is slightly smaller than that with the NH surface temperature (r = -0.73). The purple dashed ellipse is calculated based on the multivariate normal distribution with 5–95% ranges. Correlation coefficient (Corre. coeff.), slope and P value determined by a two-sided Student’s t- test are also provided with a regression line (black solid line).

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