Fig. 1: The study region in North America.
From: Climate change may outpace current wheat breeding yield improvements in North America

The circles show locations of experimental sites, with the size of the circles indicating the number of data per site. The background map shows wheat-growing areas. Created by Tianyi Zhang using R version 3.6.1, under GNU General Public License v2, 1991 (gnu.org/licenses/old-licenses/gpl-2.0.en.html). Source data are provided as a Source Data file.