Author Archives
Reporter, journalist and author who has owned and operated a bookstore, a pool and spa full service business, an apple farm, and is now committed to environmental issues.
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New report connects ocean changes with human activities on land.
The report makes clear that to protect the ocean, we must first reduce our dependence on fossil fuels. But we must also reduce ocean stress, caused by overfishing and pollution, so the ocean is healthy enough to weather the changes already underway.
“The bottom line is that we need the ocean. And right now, the ocean needs us,” said Julie Packard, executive director of the Aquarium. “It’s not too late to take courageous climate action and safeguard the ocean from further damage.”
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A Sea Bird Dead Zone
In a study published Wednesday in the journal PLOS ONE, a group of scientists from various state and federal agencies, universities and bird rescue organizations documented the die-off and concluded from the data that it was caused by a record-breaking ocean heat wave in 2014 through 2016 that triggered systemic changes throughout the ocean ecosystem.
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From Visible Plastics to Nanoplastics in the Ocean
What we commonly see accumulating at the sea surface is “less than the tip of the iceberg, maybe a half of 1% of the total,” says Erik Van Sebille, an oceanographer at Utrecht University in the Netherlands.
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Pacific West Coast Acidification Rate Larger than Other Oceans
The ocean absorbs carbon dioxide from the atmosphere, which reduces pH levels and concentrations of calcium carbonate, a mineral used by shellfish to calcify their shells. As more carbon is released into the atmosphere, concentrations of calcium carbonate decrease and the shells of organisms like foraminifera get thinner, a trend Osborne saw clearly in the sediment cores she examined.
“The shell thickness record instantly showed a long-term declining trend,” she said. “It was really obvious across entire record.”
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The Ocean Gasps for Air
This loss of oxygen in the ocean is significant enough to affect the planetary cycling of elements such as nitrogen and phosphorous which are, “essential for life on Earth,” Dr. Laffoley said.
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Science Shows Increased Ocean Acidification from Greenhouse Gases
As the amount of atmospheric carbon dioxide continues to rise, our oceans are playing an increasingly important role in absorbing some of this excess. In fact, it was reported recently that the global ocean annually draws down about a third… Read More ›
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Ocean Climate Plan
By David Helvarg Fifteen years ago I was in Fiji on assignment for the book Feeling the Heat, a collection of dispatches from 10 journalists who traveled the world to report on the already visible effects of climate change. In… Read More ›
