Land is becoming lesser and not very available for agriculture as before, There is a lot of Urbanization going on and many land space are being built on to carter for the increasing number of persons. There will be lesser organic foods available for consumption as the worlds population increase and farming space reduces. Because of this, there now has to be an improvement in farming methods and I personally consider vertical Farming to be the future of organic food farming.
Although I'm not very knowledgeable about the availability of land on other continents, but I think that there is a lot of land in Africa, but the reality is that many of these nations are not prepared to use their land, particularly for agriculture. Despite the fact that almost all African nations have lush terrain suitable for agriculture, the younger generation is not prepared to make agricultural investments. Although I think the population is growing, I also think there is still land accessible for cultivation. But because metropolitan areas are where people are growing, all this arable land is not available there. Farmers can continue to move backwards for farming as long as there is a growing population and people are using the nearby land that is available for structures.