What is the impact of the depletion of fishing stocks?

Decades of destructive fishing has resulted in the precipitous decline of key fish stocks such as bluefin tuna and Grand Banks cod, as well as collateral impacts to other marine life. Hundreds of thousands of marine mammals, seabirds, and sea turtles are captured each year, alongside tens of millions of sharks.

your answer should be c) enjoy!

the answer is:

carbon dioxide