Jul 13, 2025 · The ocean covers more than 70% of Earth’s surface and contains 97% of the planet’s water. This vast, critical reservoir supports a abundance of life and helps regulate …

Jul 2, 2025 · Understanding how the ocean works is foundational to understanding life on this planet and to the discipline of oceanography. Get to know the big systems of the ocean: its …

Dec 19, 2024 · The ocean water column is made up of five zones: the sunlight (epipelagic), twilight (mesopelagic), midnight (bathypelagic), abyssal (abyssopelagic) and hadal zones …

Jan 24, 2023 · Ocean acidification is a reduction in the pH of the ocean over an extended period of time, caused primarily by an increase of carbon dioxide from the atmosphere.

Discover the Ocean Learning Hub—your gateway to trusted ocean science content. Easily explore by topic, media type, grade level, and educational standards.

6 days ago · Oceans Before altering the air, microbes oxygenated large swaths of the sea Hundreds of millions of years before oxygen surged in the atmosphere 2.4 billion years ago, …

Without the ocean, life as we know it wouldn't be possible. There are a number of key reasons why. First, the ocean is the largest source of oxygen on Earth. According to scientists, …

Feb 6, 2025 · Ocean circulation refers to the flow of water throughout the world's oceans, which acts as a fundamental driver of Earth's climate. This continuous movement redistributes heat, …

Jan 30, 2013 · Incredible diversity exists in the ocean, from microscopic organisms to the largest animals on Earth.

Sep 26, 2024 · Ocean culture and history explore the many ways people have interacted with the sea over time. From ancient maritime traditions and early navigation to modern ocean …