Venice's salt marshes emerge as Europe's climate frontier

The Venetian lagoon holds a climate asset the world is only beginning to value. According to France 24, the salt marshes—barene in Venetian dialect—that dot the shallow waters absorb carbon dioxide and store it long-term in their mud and vegetation, performing this function more efficiently than terrestrial forests. The discovery places Venice at the centre of a broader European reckoning with nature's capacity to slow climate breakdown.

Yet the barene face a double threat. France 24 reported that erosion and rising sea levels are degrading these marshes, the very forces that climate change itself accelerates. The lagoon, already sinking and flooded by acqua alta—the high tides that routinely inundate the city—now risks losing the natural rampart that has begun to absorb the carbon burden of centuries of Mediterranean commerce and industry.