Ocean Microbes Run the Planet — Here's Why That Matters

When people think about ocean life, they imagine whales, sharks, coral reefs, and giant kelp forests.

But the vast majority of life in the ocean is invisible.

In a single teaspoon of seawater, there can be millions of microbes, including bacteria, archaea, and microscopic phytoplankton. These organisms may be tiny, but collectively they regulate oxygen production, drive nutrient cycling, and influence Earth's climate system.

In this episode of How to Protect the Ocean, we explore the hidden microbial world that powers the ocean. You will learn how ocean microbes control the chemistry of seawater, support marine food webs, and even help regulate the global climate.

We also look at a major blind spot in ocean conservation. While most policies focus on protecting whales, sharks, and coral reefs, the microbial systems that keep the ocean functioning are rarely considered in marine protection strategies.

Understanding ocean microbes may be one of the most important scientific frontiers for protecting the ocean in a changing climate.