> "Drought and heat have already reduced global cereal production by as much as 10 percent in recent years, according to Steffen."
I'm not sure how they define this because I find conflicting info elsewhere. Our world in data has global cereal production only going up [0]. That data only goes until 2021 so there could have been a decrease in 2022 but then it would probably be wrong to say "recent years".
[0] https://ourworldindata.org/grapher/cereal-production?tab=cha...