text: **Figure 2.**Distribution of temperature and precipitation changes under global warming by 1.5 °C and 2.0 °C 
  (**a**) temperature, 1.5 °C; (**b**) temperature, 2.0 °C; (**c**) precipitation, 1.5 °C; (**d**) precipitation, 2.0 °C. The figure 
  has been generated using ArcGIS 10.2 and Natural Earth-Free vector and raster map data @ https:// natur alear 
  thdata. com. 
  
  Third, yield shocks for maize were incorporated into the GTAP model via changes in land efficiency for the 
  production of the respective in each region. 