Sharks

Every year, more than 100 million sharks are killed for soup. Without this natural predator, many flash-eating fish have fluorished, consuming an abnormal number of grass-eating fish. Without the grass-eating fish, seaweed grows out of control, eventually destroying coral. Without coral, coastlines lose their natural defense, allowing waves to build to unprecedented heights, disturbing surface air pressure. The constantly fluctuating air pressure makes it easier for hurricanes to form. You can guess the rest.
Shark fin soup kills.