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About 70 percent Earth's surface is covered by water, our marvelous and still unknown oceans. Oceans are essential to life on Earth.
About 70 percent Earth's surface is covered by water, our marvelous and still unknown oceans. Oceans are essential to life on Earth.
Oceans:
Oceans:
generate half of the oxygen we breathe
contain more than 97% of the world’s water
provide at least a sixth of the animal protein people eat
absorb carbon dioxide from the atmosphere and reduce climate change impacts
Estuaries are special parts of oceans. They are the places, often in bays, where freshwater from rivers flows into the oceans' saltwater. The resulting habitats vary in saltiness and are the "nursery" areas for many marine species.
Estuaries are special parts of oceans. They are the places, often in bays, where freshwater from rivers flows into the oceans' saltwater. The resulting habitats vary in saltiness and are the "nursery" areas for many marine species.
Below, Geoff, our young geography explainer, talks about complex and powerful processes and relationships through time and space. He shows how the Gulf of Mexico, which would appear fairly inconsequential, is in fact of great consequence to the modern world.
As you watch this video think about how little we have known and still lack knowing about how our world works. And what an important value it is to learn and use the best understanding we can to maintain our life on Earth.
Sources to learn about oceans and estuaries:
Sources to learn about oceans and estuaries:
National Oceanographic and Atmospheric Administration's Ocean Today
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