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Under the Ma-20: Vision with a Catch — How Realistic Is Palma's Green Ring?

The Real Cost Factors Behind a Ma-20 Tunnel

A Ma-20 tunnel would require major spending on construction, ventilation, drainage, safety systems and long-term upkeep.

Published: April 22, 2026
Under the Ma-20: Vision with a Catch — How Realistic Is Palma's Green Ring?