「」フル ムービーをオンラインで視聴し、無料の をダウンロード. Rising sea levels and sinking land threaten to destroy Venice. Leading scientists and engineers battling the forces of nature to try to save this historic city for future generations. Discover the innovative projects and feats of engineering currently underway, including a hi-tech flood barrier, eco-projects to conserve the lagoon, and new efforts to investigate erosion beneath the city.
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