So by a rough calculation based on the average food stores on Dwilight, you are in a terrible, terrible position, as your stores will last you less than three real-life years. :-)
Wait, what? If Barca doesn't produce a surplus anymore, who the hell does?
Because in the top 4 food supply realms, one of them had no city left (Madina), and 2 of them have confirmed to now run deficits (Solaria and Barca). The other I have no idea about.
It really sounds as if this change has made EVERY realm start to starve...