Study assesses European cities against a green standard, finding disparities and highlighting the need for better urban nature access.
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A study analyzing 862 European cities found that the “3-30-300 principle”—which requires residents to see at least three trees from home, live in an area with at least 30% tree canopy coverage, and have a park within 300 meters—is a luxury enjoyed by only a small percentage of the urban population in Spain and Europe. While 79% of inhabitants in large European cities meet at least one of the three criteria, only 21% meet none. The research highlights that while nearly 57% of Europe’s urban population lives near a park, only 28% live in areas with sufficient tree canopy. The study also noted that northern and central European cities are generally greener than southern ones, and that wealthier areas in Spain tend to have more urban nature than poorer ones. Despite these challenges, some cities, like Viladecans in Spain, are pioneering greening efforts, aiming to plant thousands of trees and implementing sustainable water management systems. The principle remains a guideline, and while European regulations are moving towards protecting green spaces, the implementation requires concrete planning, resources, and long-term political commitment to avoid superficial “greenwashing.”
