text: **Figure 4.**Distribution of yield loss rates on maize in the world under global warming by 2.0 °C (up: 
  NorESM1-M model, RCP 4.5; down: GFDL-ESM2M model, RCP 6.0). The figure has been generated using 
  ArcGIS 10.2 and Natural Earth-Free vector and raster map data @ https:// natur alear thdata. com. 