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THE Oceans & Seas Thread pt 3

Re: THE Oceans & Seas Thread pt 3

Unread postby dissident » Thu 27 Apr 2017, 14:15:16

onlooker wrote:Isn't DISS, the surface ocean anoxic regime one of the main culprits that drove the extinction process of the "Great Dying" of some 250 million years ago?


"Isn't" what. Anoxic regime CH4 emissions are generated in the present moment. Crysosphere CH4 is accumulated fossil reservoir release. Totally different physical processes. Stop lumping everything into a big pile and then wanting to know how fast different processes will take.

The potential emissions CH4 from shallow anoxic regime carbon cycling is not a secondary source. Annually about 92 gigatons of carbon enter into the oceans from the atmosphere and about 90 gigatons are released. This is not just an abiotic process and a large part of this carbon cycling is controlled by the ocean surface layer ecosystem. The fraction of the 90+ gigatons of carbon being released that will be in the form of CH4 as opposed to CO2 will increase due to anoxic regime biochemistry. So we are talking about multiple gigatons of extra CH4 emissions coming our way, soon. Current global CH4 emissions are about 600 megatons per year.

Burrowing of heat into soils on land or the seabed is a very slow process. In the case of the oceans the warming works to make the surface layer shallower so that the penetration of heat into the seabed in all but the shallowest zones is actually reduced. You can fret about the Arctic methane bomb all you want, but you have and still are missing the freight train headed right at you.
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Re: THE Oceans & Seas Thread pt 3

Unread postby dohboi » Sat 29 Apr 2017, 14:15:45

plenty of freight trains to go around these days, but this ocean feedback dis is talking about is definitely a big one.
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Re: THE Oceans & Seas Thread pt 3

Unread postby onlooker » Sat 29 Apr 2017, 20:18:08

dohboi wrote:plenty of freight trains to go around these days, but this ocean feedback dis is talking about is definitely a big one.

And I thought the Arctic methane bomb was bad enough now Diss gives us this geez :(
“When the last tree is cut down, the last fish eaten and the last stream poisoned, you will realize that you cannot eat money.”
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Re: THE Oceans & Seas Thread pt 3

Unread postby dohboi » Fri 05 May 2017, 21:46:11

More, I believe, related to what dis was talking about:

Decades of data on world's oceans reveal a troubling oxygen decline


Summary:
The amount of dissolved oxygen contained in the water -- an important measure of ocean health -- has been declining for more than 20 years, reveals a new analysis of decades of data on oceans across the globe.


https://www.sciencedaily.com/releases/2 ... 104346.htm
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Re: THE Oceans & Seas Thread pt 3

Unread postby onlooker » Sat 13 May 2017, 13:46:24

Is is the type of effects being observed now that should not allow anyone to be sanguine about the future
http://www.scotsman.com/news/environmen ... -1-4444641
Oceans ‘on verge of mass extinction event’, scientists warn
“When the last tree is cut down, the last fish eaten and the last stream poisoned, you will realize that you cannot eat money.”
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Re: THE Oceans & Seas Thread pt 3

Unread postby dissident » Sat 13 May 2017, 14:54:37

onlooker wrote:Is is the type of effects being observed now that should not allow anyone to be sanguine about the future
http://www.scotsman.com/news/environmen ... -1-4444641
Oceans ‘on verge of mass extinction event’, scientists warn


Wrong title. Humanity is on the verge of a mass extinction event if the oceans go into the anoxic regime. Humans weren't around the during the last anoxic transition during the Eocene. Also, the current evolution towards this regime indicates that the Miocene is not a relevant analogue for the current warming. Also, we are seeing what is the importance of the rate of warming: transition to ocean anoxia withough Eocene levels of warming and long before the ultimate peak warming state.
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Re: THE Oceans & Seas Thread pt 3

Unread postby dissident » Sat 13 May 2017, 15:06:49

dohboi wrote:More, I believe, related to what dis was talking about:

Decades of data on world's oceans reveal a troubling oxygen decline


Summary:
The amount of dissolved oxygen contained in the water -- an important measure of ocean health -- has been declining for more than 20 years, reveals a new analysis of decades of data on oceans across the globe.


https://www.sciencedaily.com/releases/2 ... 104346.htm


Stand back and ponder in awe that we are on the verge of ocean anoxia with less than 1.5 C of warming. All the smug, arrogant, wallowing in ignorance thinking that the biosphere will take any load of sh*t we dump into it. Not one single proper scientific evaluation of this thinking, just pure gut feelings as if humans have super computers in their guts.
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Re: THE Oceans & Seas Thread pt 3

Unread postby onlooker » Sat 13 May 2017, 15:26:19

YES! Humanity is on the verge of a mass extinction event if when the oceans go into the anoxic regime. Staggering 8O
“When the last tree is cut down, the last fish eaten and the last stream poisoned, you will realize that you cannot eat money.”
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Re: THE Oceans & Seas Thread pt 3

Unread postby onlooker » Tue 23 May 2017, 16:28:47

https://robertscribbler.com/2016/05/12/ ... idas-reef/
The Killer Seas Begin — Mass Marine Death off Chile as Ocean Acidification Begins to Take Down Florida’s Reef
“When the last tree is cut down, the last fish eaten and the last stream poisoned, you will realize that you cannot eat money.”
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