13 2 Climate Science – “Our climate is our future” FIGURE 2.2 Projected global surface temperature change relative to 1850-1900 under the five GHG emissions scenarios considered by IPCC AR6 FIGURE 2.3 Range of projected global surface temperature change in 2100 relative to 1850-1900 under the Intermediate GHG emissions scenarios considered by IPCC AR6 5 4 3 2 1 0 -1 ºC 1950 2000 2015 2050 2100 CO2 emissions Very high High Intermediate Low Very low Near term Year 1.5ºC 5 4 3 2 1 0 -1 ºC 1950 2000 2015 2050 2100 CO2 emissions Intermediate Year 2ºC 2.7°C (in 2100) 2.1 to 3.5ºC FIGURE 2.4 Percentage change in agricultural crop yields by 2050 -50 -20 0 +20 +50 +100 No data change (%)
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