« Secrets de bâtisseurs » sur Histoire TV, de l’éternel et passionnant débat sur la restauration des monuments historiques

If the world wants to feed 10 billion people in 2050, it’ll need to find a better way to grow food.Today, about half the world’s habitable land is devoted to agriculture, yet even that amount can’t provide everyone with the sort of diet enjoyed by people in developed countries. If everyone wanted to eat like Americans, we’d need to farm about 140% of the world’s habitable land.That’s obviously not