Fig. 1
From: New science of climate change impacts on agriculture implies higher social cost of carbon

Impacts of temperature change on yields of four major crops. Based on a meta-analysis of 1010 point-estimates from 56 studies (see Methods section). Darkest, middle, and lightest lines show responses at the 75th, 50th, and 25th quantiles of baseline growing-season temperature, respectively. Dashed lines show the 95% confidence interval based on 750 block bootstraps, blocking at the study level. Plotted response curves are for temperature only and do not include CO2 fertilization or adaptation. Temperature changes are relative to a local 1995–2005 baseline. The histograms show the number of observations by crop and level of warming used to estimate the response functions. In subsequent analyses, yield losses >100% are set to losses of 99%