Known as “bottom trawling,” the practice is illegal within three nautical miles of Italy’s coastline, but that hasn’t stopped some unscrupulous operators from carrying on regardless.By contrast, bottom trawling endangers not just the future of local fish stocks, but the existence of one of Europe’s most important carbon sinks.After years of battling the bottom trawlers, he hit upon a solution that’s both elegant in its simplicity and beautiful to look at.Carved by leading artists, including British sculptor Emily Young, these hulking blocks are arranged in such a way that they would snag the nets of any trawler that tried to encroach on this zone.Since the first blocks of marble were sunk in 2015—and rapidly colonized by fish and plants— the gallery has grown steadily."