How climate change will affect crop yields in the future

Really useful and sobering article from the folks at Our World in Data on how climate change will affect staple crop yields globally. My key takeaways:

1) C3 crops like wheat and rice benefit from increased carbon dioxide in the atmosphere, whereas C4 crops like maize, millet, and sorghum typically don't

2) at higher latitudes moderate climate change will likely increase crop yields, whereas at the tropics yields will be negatively impacted

3) both water stress and flooding decrease yields, so increased frequency of these events will have a negative impact

4) the net effect is that under most climate change scenarios wheat yields will increase, maize, sorghum, and millet yields will decrease, and there will be more limited effects on rice and soyabean

5) as with the broader effects of climate change, the most poor and vulnerable (i.e. those living in developing countries around the tropics) will be the hardest hit, especially as they typically consume more maize, sorghum, and millet as staples

6) the "good" news is that the negative effects of climate change on yields in these countries can be more than offset by use of improved seeds, technologies and practices, as current yields are still so far below attainable yields. Making the work of development partners, DFIs, MDBs to support governments and businesses to innovate and distribute improved seeds and technologies all the more important!