21% reduction in wheat yields due to drought

10/06/2026

21% is the average reduction in wheat yields caused by mild drought conditions; rice yields decrease by 17% on average.

OECD (2026), “Anticipating and monitoring water risks for agriculture”, OECD Food, Agriculture and Fisheries Papers, No. 226, OECD Publishing, Paris, https://doi.org/10.1787/24939e6a-en.