Figure 3.

Observed and predicted burned area (BA) in natural lands. Linear trends in (a) Northern Hemisphere nonforest; (b) Northern Hemisphere forest; (c) Southern Hemisphere nonforest; (d) Southern Hemisphere forest; (e) the whole continent; (f) the whole continent, selecting in each ecoregion the model with the highest adjusted R2 (Figure S6 in the supporting information). (BA obs = burned area observed from MODIS MCD64A1; BA pred = burned area predicted by linear models; model was computed with precipitation as predictor; ER = effective rainfall; SM = soil moisture; MAE = mean absolute error as a percent of the average BA obs).