It's going to translate to an increased rate of extreme weather events. Droughts in particular are of a concern as they're already resulting in massive crop losses. Here are a couple of recent examples in North America

* https://www.ualrpublicradio.org/local-regional-news/2022-12-...

* https://globalnews.ca/news/9761043/dry-spring-southern-alber...

This kind of thing can easily lead to famines if a significant portion of the crops ends up being lost during the year.