The grapes are an edible food crop and at the same time provide shade during the heat of the summer. And ... its leaves fall off allowing maximum sun penetration during the cold season. |
The major problem that we are facing on this planet is exponential population growth. How do we provide food for the world's growing population? There are only two ways to do that: You either increase your yields of lands that are already under cultivation, or you attempt to bring into cultivation lands that are marginal. And two-thirds of the planet are really marginal lands. |