Farms today take up a lot of space, and with a growing population, major deforestation would have to occur to feed all those hungry people. Conventional farms also use lots of pesticides, herbicides and fertilizers, which can contaminate both land and water. Then there's always the chance some pests or nasty weather will blow in and cause crop failure, or the soil will become depleted from overuse. All in all, farming is an uncertain endeavor.
What are the obstacles to reforestation?
Answered by Discovery Channel
Is it possible to have too many food options?
Answered by Peter Menzel and Faith D'Aluisio
What should I feed worms for vermicomposting?
Answered by Planet Green