Humusica 2, article 17: techno humus systems and global change − three crucial questions

•Comparison of food quality produced by conventional and organic agriculture.•A traditional recipe of tomato sauce in modern life.•Are organic carbon and biodiversity correlated in agricultural soils?•Agriculture as a mean for fighting against the Global Change. Some soil scientists or biologists (14, one preferring anonymity) answered the three following questions: (1. Introduction) 2. Why is organic food better (tastes better, is healthier, richer in nutrients, contains less pesticide, etc.) than food produced with hydroponic or intensive farming techniques? 3. In a humipedon, are soil functioning, biodiversity and carbon content three interdependent and intersected aspects of a single ecosystem? In other words, can we treat these aspects as if they were inseparable in a humipedon? 4. Are agriculture and civilization (the society, culture, and way of life) interconnected? All scientists expressed affirmative answers. Nuances or in depth information were also furnished. The article allows to understand the real “agronomic challenge” that the predicted Global Change might represent for humanity.