Los Angeles Times

Overfished and overpopula­ted

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Re “Use the ocean without using it all up,” Opinion, Jan. 10

Ayana Elizabeth Johnson and Jeff Orlowski make a compelling case regarding the world’s marine resources.

As a lifelong surfer who has never lived more than a mile from the ocean, I heartily agree with every claim they make about the perils of overfishin­g and the destructio­n of coral reefs. I am afraid my young grandson will inherit oceans that are vast wastelands and never know the joys I experience­d in the water over my 70 years.

But like many environmen­talists, the authors do not address the root cause of the problem. Why is there so much overfishin­g? Why are the seas acidifying? Why are coral reefs on track to collapse by 2050?

All this is happening to feed and entertain people, the global population of which is increasing at an incredible rate. In 1947, there were 144 million people in the U.S. and about 2 billion globally. Just 40 years later, in 1987, the numbers were 242 million people in the U.S. and 5 billion worldwide. Today, 325 million people live in the U.S., and there are 7.6 billion humans on the planet.

Until we get a handle on explosive population growth, efforts at restoratio­n and conservati­on will be for naught. We must provide birth control for the world. Extreme? Sure, but find a better answer. Steve Switzer

San Pedro

Johnson and Orlowski compare the ocean to a trust fund off which people live. They cite food security and jobs related to the fishing industry as driving factors to protect the ocean, and stress the importance of increasing the number of marine protected areas. I applaud them for that.

However, I think that they left out a much more important reason why we need to protect our ocean.

Phytoplank­ton are microscopi­c organisms that live in the upper layers of water, where they photosynth­esize. In so doing, they create their own food with the energy of the sun and absorption of carbon dioxide. An important byproduct of this process is oxygen, which is released into the air.

Because approximat­ely three-quarters of Earth is covered with water, phytoplank­ton and algae produce up to 70% of the oxygen we breathe. In other words, the majority of our air gets produced in the ocean. That itself should be enough of a reason to protect our waters.

Hands off our oceans — humans need to breathe. Evi Meyer

Palos Verdes Estates

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