Wikipedia has a good article: https://en.wikipedia.org/wiki/Climate_change_and_agriculture
One thing to consider when you're reading anything about the predicted effects of climate change: The effects will not be uniform in space or time.
For example, warming itself has been highly nonuniform. It's not that every day, every location on earth is X degrees warmer. Rather, that's an average; some days in some places are a lot hotter, and on other days in other places, it's less hot. This means that in addition to the average temperature increasing, extremes are also more common (has to be).
See the first picture at https://en.wikipedia.org/wiki/Global_warming, or this video: https://climate.nasa.gov/climate_resources/139/video-global-...
I expect that "10% decrease in average [time and space] grain yields" would also be spiky, in time and space. That means some places and times will experience significantly more than a 10% drop.