My biggest fear…

My greatest environmental fear is that the oceans will continue to be ignored until it’s too late. There are 2.5 billion years of evolution in the oceans, and a mere 500 million or so on land. When life evolved in the ocean, the atmosphere was very hot, full of carbon dioxide. Plants in the ocean evolved, and started sequestering carbon, removing carbon dioxide from the atmosphere, releasing oxygen, and the planet began to cool. Over hundreds of millions of years, much of the carbon that was removed from the atmosphere was stored as oil and natural gas reserves in the Earth’s crust. Now we’re bringing that carbon out again and releasing it back into the atmosphere. We have made great jumps in our awareness regarding global warming, but we haven’t acknowledged the ocean’s role in global climate. The oceans are the greatest regulators of climate on the earth. Phytoplankton (tiny plants) in the oceans provide 70 percent of the oxygen in our atmosphere, and are the greatest sink for carbon dioxide on earth. We’re now destroying the oceans, removing apex predators such as sharks, dredging the oceans; without considering that this atmosphere, our precious oxygen, and our hospitable planet, is all made possible because of life in the ocean that is part of a food chain. Food chains are sensitive, haven taken hundreds of millions or billions of years to form, and we’re destroying it.

Rob Stewart

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