Denmark Constructs 275-Hectare Artificial Island for Climate Defense and Urban Growth
Denmark is sinking 80 million tons of soil into the Baltic Sea to create Lynetteholm in Copenhagen, accommodating 35,000 residents. The project, which began in October 2022, aims for completion of soil filling by 2050, with potential impacts on regional ecology and international relations.
The Lynetteholm project in Copenhagen involves sinking 80 million tons of soil to create an artificial island for housing and climate defense. As of August 2025, over 50% of Phase 2 is complete, with 5.2 km of the planned 8.6 km of stone dikes finished.
The total investment is 20 billion DKK (approximately 2.7 billion EUR), and the project is expected to generate 136 billion DKK in wellbeing gains, according to economists. However, the Coalition Clean Baltic has raised concerns about potential ecological impacts, including reduced saline water flow to the Baltic Sea, which has led to formal objections from Sweden. Despite political support, the project faces criticism over environmental implications and has been characterized by some as
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