Effect of increased GHG emissions on surface air temperature, extreme high-temperature, and aridity index. (IMAGE)
Caption
a, Spatial distribution of the summer SAT (°C) difference between high- and low-emission scenarios (SSP5-8.5 and SSP1-2.6, respectively) for 2060‒2099. Vertical colored strips represent the temporal evolution of summer SAT (°C) difference between high- and low-emission scenarios over central North America (NA: 36°‒53°N, 92°‒115°W), mid-latitudes of western and central Eurasia (EUR: most of Europe and western Siberia, covering [36°‒49°N, 8°W‒30°E], [36°‒55°N, 30°‒48°E], and [48°‒55°N, 48°‒86°E]), and other regions of the world (Other) for 2015‒2099. b,c, Same as a, but for extreme high-temperature and aridity index, respectively. Red, blue, and black bars show the latitude-weighted regional averages of SAT, extreme high-temperature, and aridity index over NA, EUR, and Other for 2060‒2099. Black lines delineate the regions of NA and EUR. Areas are marked with stippling where the GHG-driven changes (SSP5-8.5 minus SSP1-2.6) are deemed robust: specifically, where at least 80% of the models project a local change greater than the global land average.
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