Without herbicides & pesticides, can we grow enough food to feed the world?
Yes we can. The main problem with the worlds food supply is that it isnt distributed fairly. Often this is for political reasons, such as trade disputes or civil war. Food exists, but people cant get access to it. These problems need to be addressed by governments and international organisations, urgently. In the West, the problem is overproduction, and to combat this, about 10% of farmland has to be set-aside each year to reduce production. When land is turned over to organic production, there is a decrease in the amount of food it produces. But over time (about four years), as the soil becomes more fertile, output increases.