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Old 11-17-2021, 06:23 AM   #361
mjolnir
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Quote:
Originally Posted by enorbet View Post
So... are you an accredited climate scientist?
Nope, lol, just a free thinker who occasionally breaks from the lemming herd. If you are published and peer reviewed in ANY scientific field, I'd love to read the paper?

Last edited by mjolnir; 11-17-2021 at 06:27 AM.
 
Old 11-17-2021, 09:19 AM   #362
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I'm no climate scientist, but there are other factors to be sure. To be clear, CO2 is the main one, increase of CO2 tracks temperature rise pretty accurately. There is a tendency to simply fixate on that simply to avoid confusing the main message. Some others are
  • Methane is the number 2 source, from many and varied places.
  • Dark coloured pollutants from many & varied sources are known to come down from the upper atmosphere and darken the coloiuur of the snow, absorbing more of the sun's heat and contributing to global warming.
  • There is a positive feedback mechanism also because the less sea ice there is reflecting 90% of sunlight, the more sea there is absorbing 90% of sunlight.
  • Another positive feedback is forest fires burning trees. The sap in these trees is appapently a source on several substances wich contribute to global warming.
  • The time since the start of the Industrial Revolution has seen a huge increase in processes requiring heat which cannot be ignored as a factor. Yesterday's heat may be gone, but today's is still here.

You may think of more sources, but CO2 is the big one because, unlike methane, it's half-life is big, so it's here to stay.
 
Old 11-18-2021, 12:03 AM   #363
enorbet
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Re: Originally Posted by enorbet
So... are you an accredited climate scientist?

Quote:
Originally Posted by mjolnir View Post
Nope, lol, just a free thinker who occasionally breaks from the lemming herd. If you are published and peer reviewed in ANY scientific field, I'd love to read the paper?
Yet you imagine you know more on the subject of climate than climate experts and relevant scientists, just because you view yourself as not a lemming. Somewhat regrettably, although I have been published in my area of Electrical Engineering where I have my degree and some 50 years of professional practice, I don't have expertise in Climate and the only related field of study is several years of Chemistry and Physics in both High School and University.

However that training has gained me the understanding to respect those who have worked hard similarly in their field that does apply to Climate and I have no problem in deferring to their expertise... not by rote, but subject to change as new evidence arrives. The Test of Time especially in areas under intense scrutiny tells a great story. If a concept manages to survive for very long, certainly for decades in these rapidly evolving years, it deserves some serious consideration.

Here is an example involving the role of CO2 in Climate change from 1985. Please note who attended and the important dates since it would be at least two decades before enough evidence added up outside the community of experts to even begin to make any changes. This is Carl Sagan in 1985... you really shouldn't pass on it if you have any notion of being informed.

https://www.youtube.com/watch?v=Wp-WiNXH6hI&t=335s
 
Old 11-21-2021, 02:41 PM   #364
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On a different aspect of the same topic how-bad-is-online-shopping-for-the-environment takes an interesting look at the pros and cons of Amazon's Green ambitions, packaging, online shopping generally.

Of course all of this is about as helpful as polishing the brasses on a ship that is sinking in terms of global warming, which is a global problem without a global solution.
 
Old 11-24-2021, 07:48 PM   #365
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Recently a series of important scientific breakthroughs have made it quite likely that the person or company to build the first commrrcial grade fusion reactyor is alive today. It's so serious major publications like "Scientific American" and more importantly the venerated "Nature" have highly positive reports following a long period of "30 + 30 + 30 + n" skepticism. While many nations are working together for state sponsored efforts in France and elsewhere, not only is a private firm prepared to complete a full-scale demo in the UK by 2025, but a number of recent startups have garnered $2.4 Billion USD in funding. They are calling the progress "the SpaceX of Fusion Power Era".

Fusion is the cleanest most sustainable and safest of all nuclear power methods since any manner of fault or breakdown of any kind simply shuts it off with no sensors, actuators, or intervention of any kind. Fusion just stops. It is not a self-sustaining chain reaction like Fission. The spinoff cascade effect of such a cheap source of power has the power to change the future of all mankind in ways so ultimately beneficial to every living human being it's impossible to calculate all of the collateral improvement in quality of life.

Here's a link to the recent article in "Nature" -- https://www.nature.com/immersive/d41...44990804971520

Last edited by enorbet; 11-24-2021 at 07:49 PM.
 
Old 11-27-2021, 09:40 AM   #366
mjolnir
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Quote:
Originally Posted by enorbet View Post
...Yet you imagine you know more on the subject of climate than climate experts and relevant scientists, just because you view yourself as not a lemming. ...
Incorrect of course. Thanks for bringing up Sagan. Even the great Carl Sagan, not by the way a 'climate scientist' as are neither you, I or AFAIK anyone else in this forum, postulated as to polar opposite possible outcomes for anthropologically induced global warming/cooling. Sure, we have 40 more years of research but that is less than the blink of an eye in the geologic record. The collective 'we' don't yet know a lot of things about climate. We don't know how much methane is bubbling up from the oceans. We don't know how many aerosols in the forms of black and brown carbon and 'dust' particles are coming out of factories and deserts of Eastern Asia. We don't know what causes the (estimated) 1470 Year Climate Cycle known as Dansgaard-Oeschger (D-O) events.
"Scientists Willi Dansgaard and Hans Oeschger first reported the Dansgaard-Oeschger (D-O) events in
Greenland ice cores. Each of the 25 observed D-O events consisted of an abrupt warming to nearinterglacial conditions that occurred in a matter of decades and was followed by a gradual cooling. ...What caused Heinrich and Dansgaard–Oeschger events?
The cause of these glacial events is still under debate. ...Evidence for changes in deepwater formation supports the freshwater forcing hypothesis. Measurements from deep-sea sediments in the North Atlantic indicate reduction of deepwater formation during Heinrich events (McManus et al. 2004). Evidence for freshwater forcing and reduced deepwater formation during D-O events is more ambiguous. The initial trigger for freshwater releases has not yet been identified. One suggestion is that small, gradual changes in solar output could have influenced the timing of abrupt changes. Other ideas call upon natural oscillations of the ice sheets themselves or of ocean processes." https://www.ncei.noaa.gov/sites/defa...OCT%202021.pdf
Correlation does not prove causation.

Carl Sagan: "...We do not understand the long- term effects of our course of action.

But we have also been perturbing the climate in the opposite sense. For hundreds of thousands of years human beings have been burning and cutting down forests and encouraging domestic animals to graze on and destroy grasslands. Slash-and-burn agriculture, industrial tropical deforestation and overgrazing are rampant today. But forests are darker than grasslands, and grasslands are darker than deserts. As a consequence, the amount of sunlight that is absorbed by the ground has been declining, and by changes in the land use we are lowering the surface temperature of our planet. Might this cooling increase the size of the polar ice cap, which, because it is bright, will reflect still more sunlight from the Earth, further cooling the planet, driving a runaway albedo effect?"
https://gizmodo.com/heres-carl-sagan...-cl-1481304135
https://www.google.com/books/edition...sec=frontcover
 
  


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