Climate change clearly has an impact on plant species and crops: the problem is not so much the changing climate (on our planet it has always been and always will be in a cyclical natural way), but how quickly it is changing. recent years. From here we enter the area of the natural adaptability of animal and plant species and ecosystems in general, which inevitably turns out to be more complicated. Heat waves in particular, but also droughts in various regions of the Earth, make large areas of cultivation more vulnerable. The world food system today stands on several pillars, namely wheat, corn and rice: dependence on too few species, almost always grown massively and in monoculture. 

Biodiversity therefore becomes the key word Do you think that since ancient times, it is estimated that humans have cultivated more than 6,000 species of plants, and then gradually favored those with higher yields (including rice, corn, and wheat). In a climate that is changing so rapidly, old cultivable species are therefore reappearing, which are more resistant but equally nutritious. (Edoardo Ferrara)