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Underwater oxygen loss threatens earth's stability, researchers warn

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Re: Underwater oxygen loss threatens earth's stability, researchers warn

#22
post #2

[flagged]

Instead of immediately making this an us vs them with theoretical climate deniers how about we focus on talking about how to improve science communication so that the article isn't something simultaneously dense and vague enough to be easily dismissed. I'll pick on the US, because blaming India and China will incite their little public defenders to bury the thread. The Gulf of Mexico is currently downstream of the US…

dumping nutrients into ocean funnily helps ocean ecosystems to get more productive.

who could have thought, eh?

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#23
post #8

Have we ever as a species successfully changed our behavior on a scale needed to address something like climate change and underwater oxygen loss? What would be the closest “we’ve got to change or perish” moment we’ve successfully navigated?

Ozone hole over Antarctica. It is possible for us to work together and fix these things. Edit: Moving away from leaded gas might be another example. (CFCs and leaded gas invented by the same dude, fun fact: https://en.wikipedia.org/wiki/Thomas_Midgley_Jr . Quite a legacy...)

When the costs are low and require no change in personal behaviour, nor even belief in the problem. Billions of people had no idea about changes to aerosol propellants or refrigerants and they were not required to know or agree in order to solve the problem.

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#24
post #9

Have we ever as a species successfully changed our behavior on a scale needed to address something like climate change and underwater oxygen loss? What would be the closest “we’ve got to change or perish” moment we’ve successfully navigated?

We did a reasonable job with ozone depletion, but that has much lower costs. https://en.wikipedia.org/wiki/Ozone_depletion

The cost of not addressing it is more distributed: at some point you can't go outside anymore since the UV index is so high, sunscreen can't block high-intensity UV-B and UV-C, plants get damaged to the point of catastrophic crop failures... you can live in denial about climate change in developed countries (for a limited time anyway) but ozone affects everyone.

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#25
post #19

Oxygen loss already happens, see news about dead fish. Issue here is that becomes more common and underwater oxygen loss is approaching an “unsafe space” with impacts likely irreversible within human lifetimes, some of which could persist for centuries. Coastal “dead zones”, impact of fish food etc.

[deleted]

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#26
post #15
post #9

Earlier quoted context omitted.

We did a reasonable job with ozone depletion, but that has much lower costs. https://en.wikipedia.org/wiki/Ozone_depletion

Yesterday there was an article here about ozone vs aluminum from the spacex sattelites reentry (which soon there will be plenty of)

https://news.ycombinator.com/item?id=49062120

“Plasma Tunnels Reveal How Dying Satellites Fall to Earth” (ieee.org)

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#27

Have we ever as a species successfully changed our behavior on a scale needed to address something like climate change and underwater oxygen loss? What would be the closest “we’ve got to change or perish” moment we’ve successfully navigated?

Food?

I.E. avoiding population collapse due to lack of ecosystem carrying capacity? Eliminating famine? etc.

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#28
post #8

Have we ever as a species successfully changed our behavior on a scale needed to address something like climate change and underwater oxygen loss? What would be the closest “we’ve got to change or perish” moment we’ve successfully navigated?

Ozone hole over Antarctica. It is possible for us to work together and fix these things. Edit: Moving away from leaded gas might be another example. (CFCs and leaded gas invented by the same dude, fun fact: https://en.wikipedia.org/wiki/Thomas_Midgley_Jr . Quite a legacy...)

We haven't fixed the ozone hole yet. It'll take another 40 years for it to return to the levels prior to 1980:

https://science.nasa.gov/earth/earth-observatory/ozone-hole-...

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#29

Have we ever as a species successfully changed our behavior on a scale needed to address something like climate change and underwater oxygen loss? What would be the closest “we’ve got to change or perish” moment we’ve successfully navigated?

Food? I.E. avoiding population collapse due to lack of ecosystem carrying capacity? Eliminating famine? etc.

[deleted]

Re: Underwater oxygen loss threatens earth's stability, researchers warn

#30
post #13

Earlier quoted context omitted.

> I'll pick on the US As you should. The current administration is partially owned by the fossil fuels industry and is literally paying to destroy existing and planned renewable energy sources. The agricultural runoff problem is an ecological crime scene. We could solve it if we weren't so corrupt.

It's been a known issue since the 1980s. LUMCON/Rabalais, Farm Bill in 1995, 1997 Hypoxia task force, 2001 Action plan, 2008 Action plan, 2011 Stoner Memo... The point is being deranged about the current admin doesn't help the scenario. Every team (political group) fucked up royally, continues to fuck up, and only cares about how much money businesses are putting into their second home or their kid's trust fund.

Ah another very timely video from SmartEveryDay explaining this eloquently.

https://www.youtube.com/watch?v=vS6HEes8daw

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