The "Planet in Peril" crew traveled with Knights to Taiwan's southern port city of Kaohsiung, which is considered one of the world's main hubs for shark fins.

CNN: Shark fin soup alters an ecosystem

The Chinese city of Shanghai, which last year overtook Kaohsiung as the world's fourth-largest port (after Hong Kong, Singapore and South Korea's Pusan), saw traffic rise by an almost-as-impressive 35.6%.

ECONOMIST: On a roll

On Wednesday June 25th, the southern Chinese city of Shenzhen said it had overtaken Kaohsiung in Taiwan to become the world's fifth-largest container port.

ECONOMIST: On a roll