Crops can blight, animals can get diseases. I don’t know much about hydroponics but I know that bacteria are a concern. What food source is the most reliable, the least likely to produce less food than expected?
Seize people’s grass lawns and tear out 2/3 of roadways and convert the land into community gardens and ponds, grow food where the people are. Probably some form of population control.
Pie in the sky though. We’ll probably just start eating bugs by the container ship load and then go extinct instead
That’s not going to be as much land as you think it is, relative to the food needs of the maybe billion people living in lawn-growing places.
No you’re right, but it would be one of the more difficult things to convince people to do, so in this pie in the sky scenario where people actually give a crap about anything they’d also be doing a lot of other stuff that together would make a larger whole.
Oh yeah, not to say that lawns make sense. It’s just not a silver bullet.