According to the International Union for Conservation of Nature (IUCN), oceans are the lifeblood of planet Earth and humankind. They flow over nearly three-quarters of our planet and hold 97% of the planet's water. They produce more than half of the oxygen in the atmosphere and absorb the most carbon from it.  No matter how far from the shore that we live, oceans still affect our lives and the lives of our families and friends, classmates and colleagues.

The air that we breathe, the water we drink, the food we eat, the products that keep us warm, safe, informed and entertained — all can come from or be transported by the ocean.

About half of the world’s population lives within the coastal zone, and ocean-based businesses contribute more than $500 billion to the world’s economy. Historically, we thought that we could never take too much out of, or put too much waste into, the oceans.

The sheer number of people who use and depend on the ocean, and the sometimes unwise practices we adopt, have created problems such as overharvest of resources, reduction in biodiversity, and degradation of marine habitats and species, among others. We risk the very ecosystems on which our survival depends.

We must become better stewards of our oceans. One meaningful way to do this is by creating effective marine protected areas (MPAs) and MPA networks.

Image source:  National Ocean Service
Image license: CC-BY-ND

Here is what our world ocean provides us

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According to the International Union for Conservation of Nature (IUCN), oceans are the lifeblood of planet Earth and humankind. They flow over nearly three-quarters of our planet and hold 97% of the planet's water. They produce more than half of the oxygen in the atmosphere and absorb the most carbon from it. No matter how far from the shore that we live, oceans still affect our lives and the lives of our families and friends, classmates and colleagues.

The air that we breathe, the water we drink, the food we eat, the products that keep us warm, safe, informed and entertained — all can come from or be transported by the ocean.

About half of the world’s population lives within the coastal zone, and ocean-based businesses contribute more than $500 billion to the world’s economy. Historically, we thought that we could never take too much out of, or put too much waste into, the oceans.

The sheer number of people who use and depend on the ocean, and the sometimes unwise practices we adopt, have created problems such as overharvest of resources, reduction in biodiversity, and degradation of marine habitats and species, among others. We risk the very ecosystems on which our survival depends.

We must become better stewards of our oceans. One meaningful way to do this is by creating effective marine protected areas (MPAs) and MPA networks.

Image source: National Ocean Service
Image license: CC-BY-ND

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