Globally, only 20% of the Earth’s forests remain intact. But intensive agriculture, urbanization, unsustainable logging, mining and other factors are accelerating their demise.
Mature forests harbor the highest concentration of terrestrial biodiversity, and generate a multitude of vital ecosystem services for the beings that inhabit them and for humans from their near or more distant environment (water purification, air quality, CO2 emissions reduction, etc.) In general they are a key source of health and well-being.
In a territory like Catalonia (example in a developed country), between 5 and 10% of the total wooded area corresponds to minimally mature forests of high ecological value which are urgent to preserve.