Very few people know that oil was produced in Collserola. In the middle of the last century, owners of farmhouses in this mountain range surrounding Barcelona owned olive trees, made self-consumption oil from them, and sold the surplus. But with the abandonment of the countryside throughout Catalonia, all this productive activity was also lost and the olive trees of Collserola, some centuries old, were swallowed by the forest. If in 1956 21.5% of Collserola were cultivated land, now it is only 6.4%. This not only represents a loss of the typical biodiversity of the area, but also has a dangerous collateral effect: it increases the risk of fire.

In a remote corner of the planet, just 1,000 kilometers from the North Pole and surrounded by ice, lies a kind of modern-day Noah's Ark, designed not to save animals, but to preserve the future of global agriculture. Buried beneath a mountain of ice in the Norwegian archipelago of Svalbard, the vast global seed vault has become a silent symbol of resilience in the face of the global uncertainties of the 21st century. Designed to ensure the continuity of spices and plant-based foods in the event of a catastrophe, this biodiversity sanctuary receives samples of crops from all over the world. And now, finally, the olive tree is also part of this select group. Therefore, the future of this symbol of the Mediterranean landscape and culture is guaranteed.