CNN The oceans are crucial to the existence of life on Earth. They are under threat, but they help to provide the air we breathe, the food we eat and the fuel that powers our world.
We can all do our part to turn the tide on man-made damage that continues to threaten marine environments. The theme of Living Oceans: Turning the Tide will be on Thursday, November 3, with the theme of this year's Call to Earth Day. This Call to Earth Day will give you the chance to protect the world's oceans and the plants and animals that live in their waters.
We celebrate our seas and look at why we need to protect them now more than ever.
Oceans act as carbon sinks, reducing the amount of CO 2 in the atmosphere.
That helps to reduce CO2 in the Earth's atmosphere, protecting us from global warming. The oceans play a vital role in regulating our climate, and cover about 70% of the Earth's surface area. They keep temperatures from getting too hot or cold and their water evaporates to form vapor that can travel vast distances before falling as rain.
The pollution is damaging ecosystems and harming wildlife.
Fertilizers wash from farmland into the sea, where they can feed large blooms of algae. By using up oxygen in the water, blooms like these have created more than 400 ocean dead zones, making up an area bigger than the United Kingdom. These areas are so starved of oxygen that they can barely support marine life.
It's also a threat to the hundreds of millions of people who depend on fishing for their food and income.
The situation may look bleak, but it's not too late to make a difference.
You can join thousands of people around the world on Thursday, November 3, and get involved with Call to Earth Day 2022, Living Oceans: Turning the Tide. If you would like to sign up for our Call to Earth mailing list, send us an email at calltoearth warnermedia.com.
There are many threats to our seas, but there are also many opportunities to find solutions.