Some climate deniers should be pitied, but none deserve respect., page-421

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madamswer

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08/12/19

21:22

Post #: 41859601
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Originally posted by bellcurve ↑

More evidence of nature being out of balance comes from a report on BBC of declining ocean oxygen levels.

The following is the start of a report entitled “Climate Change: Oceans running out of oxygen as temperatures rise.” some tropical locations have lost up to 40% of their oxygen, the report says.

the report is available on the BBC news app.

”Climate change and nutrient pollution are driving the oxygen from our oceans, and threatening many species of fish.

“That's the conclusion of the biggest study of its kind, undertaken by conservation group IUCN.

“While nutrient run-off has been known for decades, researchers say that climate change is making the lack of oxygen worse.

“Around 700 ocean sites are now suffering from low oxygen, compared with 45 in the 1960s.

“Researchers say the depletion is threatening species including tuna, marlin and sharks..

”The threat to oceans from nutrient run-off of chemicals such as nitrogen and phosphorus from farms and industry has long been known to impact the levels of oxygen in the sea waters and still remains the primary factor, especially closer to coasts.

“However, in recent years the threat from climate change has increased. As more carbon dioxide is released enhancing the greenhouse effect, much of the heat is absorbed by the oceans. In turn, this warmer water can hold less oxygen. The scientists estimate that between 1960 and 2010, the amount of the gas dissolved in the oceans declined by 2%.

”That may not seem like much as it is a global average, but in some tropical locations the loss can range up to 40%.Even small changes can impact marine life in a significant way. So waters with less oxygen favour species such as jellyfish, but not so good for bigger, fast-swimming species like tuna. “

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It's all very well bashing away on a discussion forum about this kind of thing.
But what is to be done about it, do you think?
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