Rice yields declining under global warming
"Global warming is cutting rice yields in many parts of Asia, according to research, with more declines to come."
Yields have decreased 10-20% in the last 25 years in some areas.
The theorized mechanism that causes the decline: when it's hotter at night, plants need to respire (breathe) more, so they expend more of their energy at a time when they are not able to photosynthesize.
Listening to Miles Davis's Miles in the Sky - "Stuff"