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How one founder plans to save cities from flooding with terraforming robots
San Rafael, California, is sinking about half an inch annually, jeopardizing neighborhoods with flooding risks. Startup Terranova proposes using terraforming robots to inject wood waste into the ground, raising the land at a projected cost of $92 million, significantly cheaper than alternative seawall solutions. The approach utilizes robotics and software to enhance efficiency and address coastal city challenges posed by rising sea levels.
Key points
- San Rafael is sinking by half an inch per year, risking flooding due to sea level rise.
- 300 million people globally are threatened by routine flooding by 2050.
- Building seawalls in the U.S. might cost over $400 billion.
- Terranova has developed robots to inject wood waste into the ground, aiming to lift land and prevent flooding.
- Cost for Terranova's solution is projected at $92 million for lifting 240 acres, significantly lower than traditional seawall costs.
- The company raised $7 million in a seed round, valuing it at $25.1 million.
- Their innovative approach involves utilizing waste wood and robotics to automate the injection process.
- Terranova's technology uses GIS data and algorithms to guide the injection of slurry.
- Concerns exist about the potential for the wood slurry to impact earthquake risks, but it is considered safer compared to seawalls.
Why it matters
- Increased urbanization and climate change have intensified the effects of rising sea levels.
- Terraforming technologies can address both land subsidence and flood resilience, vital as more cities face similar issues.
- Investment in climate adaptation startups is expected to rise significantly as cities seek innovative solutions by 2025.
Terranova's innovative approach to combating urban flooding through robotic terraforming presents a viable, cost-effective solution, potentially transforming how cities like San Rafael adapt to rising sea levels and land subsidence.