SEAFLOOR SCRAPING
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Bottom-trawling nets, which scrape up anything in their path in pursuit of fish, have left their mark on 20 million sq. mi. (52 million sq km) of seafloor.
Bottom-trawling nets, which scrape up anything in their path in pursuit of fish, have left their mark on 20 million sq. mi. (52 million sq km) of seafloor.