Climate change, Ocean temperatures and the Energy Crisis - Discuss.
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As I've pointed out numerous times in this thead no one really knows how significant a factor is methane to 'climate change.'
While technically it is true that expert conclusions about CO2 effect on climate is not 100% "really knows" the odds are provably very high due to long term study in botany, animal migration records, ice cores, geology, ice levels, chemistry and much more. The evidence is compelling that
1) for millions of years CO2 levels and CO2 producing events correspond with rising global temperature averages
2) Graphing of post 20th Century human production of CO2 alongside average climate change logically compels concern and mitigation measures.
We should probably add to that the effect is so far along in 2022, we should (and some already are) be thinking in terms of adaptation. To buy into fossil fuel propaganda (much like tobacco industry propaganda) in 2022 is wishful thinking and to pronounce it's tenets as fact is irresponsible. At your home, if a smoke alarm fires up in the middle of the night, it could be false alarm but you'd be wise to get out of bed and investigate... preferably clothed to suit the outdoors.
Location: as far S and E as I want to go in the U.S.
Distribution: Fossapup64
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Quote:
Originally Posted by enorbet
While technically it is true that expert conclusions about CO2 effect on climate is not 100% "really knows" the odds are provably very high due to long term study in botany, animal migration records, ice cores, geology, ice levels, chemistry and much more. The evidence is compelling . . .
At your home, if a smoke alarm fires up in the middle of the night, it could be false alarm but you'd be wise to get out of bed and investigate... preferably clothed to suit the outdoors.
Suggestion -- buy and wear a suitable RESPIRATOR when doing so.
All sarcasm aside and to all of you capitalists -- this could be considered a relevant stock tip or hint -- LOL!
Last edited by TorC; 09-25-2022 at 08:19 AM.
Reason: clarity
While technically it is true that expert conclusions about CO2 effect on climate is not 100% "really knows" the odds are provably very high…
I really dislike 'experts' telling you something isn't conclusively proved. They take it upon themselves to set your standards of proof, acceptance or rejection. I'm sure the cigar/cigarette manufacturers would say the notion that smoking wrecks you health isn't conclusively proved.
Likewise, the oil companies definitely feel that global warming as a result of burning oil isn't conclusively proved. Putin invading Ukraine wasn't definitely proved until Russian tanks showed up shooting shells. And skeptics say it's not conclusively proved we are living in the last days.
I wopuldn't accept anyone else's standards except your own. Not Mine; Not any poster here. Yours.
Location: as far S and E as I want to go in the U.S.
Distribution: Fossapup64
Posts: 224
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As the leading story in Wired this month states -- "Leave It All Behind."
In this abstract debate, I extend the meaning of this title to include the Old Set of priorites which places money even in the top three!
It boils down to shift the current paradigm or be held responsible by upcoming generations for stupid actions like allowing the Amazon Rainforest to become an ecolgical disaster, thereby severely limiting Earth's ability to cleanse its life-sustaining atmosphere adequately for so-called advanced animal life to survive longterm. ('So-called' because it includes humankind).
To paraphrase an irritating credit card commercial, "What's in your priority list?"
For those who might be able to get it, This BBC link seems less Geo-ip protected than usual. It lists foods the World Economic Forum considers endangered. Here's a screengrab of the list.
Regarding experts, experts are only as reliable as their motivations but ones that are not paid shills protecting some entrenched major investment are necessary or we wouldn't have had any warning about anthropogenic climate change nor how best to cope with it when large percentages of people buy into the shill buyers scam. Everyone here depends on experts every day since we live in a technological and diverse world. Imagining it is advisable, let alone possible, to ignore experts is delusional folly impossible even for retro societies like Mennonites and Amish. In every age there are Craftsmen and Hacks. It takes some work to differentiate, so what's new?
For those who might be able to get it, This BBC link seems less Geo-ip protected than usual. It lists foods the World Economic Forum considers endangered. ...
There are legitimate concerns for food production in some areas. It will be interesting to see how the crops whose U.S. production I track, fare over the next 5 year period. Data for this year (2022) will be available in Feb. 2023. I expect there to be significant drops in some crops due to this years widespread heat and drought. Only time will tell if decreases in production are prolonged in nature.
The 5 year avg. for corn production in the U.S. for the years 2017 - 2021 increased by 14.16 bu./ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for wheat production in the U.S. for the years 2017 - 2021 increased by 1.3 bu./ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for rice production in the U.S. for the years 2017 - 2021 increased by 111.2 pounds/ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for potato production in the U.S. for the years 2017 - 2021 increased by 25.4 cwt/ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for oat production in the U.S. for the years 2017 - 2021 fell by 2.4 bu./ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for soybean production in the U.S. for the years 2017 - 2021 increased by 3.8 bu./ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for peanut production in the U.S. for the years 2017 - 2021 increased by 61 pounds/ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for sugarcane production in the U.S. for the years 2017 - 2021 increased by 1.6 tons/ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for sorghum production in the U.S. for the years 2017 - 2021 increased by 5.8 bu./ac. over the 5 year avg. for the years 2012 - 2016.
The 5 year avg. for millet production in the U.S. for the years 2017 - 2021 increased by 2.4 bu./ac. over the 5 year avg. for the years 2012 - 2016.
I think the real; issue (and we saw it in Europe) is that the droughts are getting longer, and the rains are much more unpredictable, with often very heavy downpours. When individual farmers manage their individual circumstances well, it can result in bumper harvests, as your figures show. But it gets more difficult to grow the crops every year. That's the rub. Some years there'll be massive crop failures (e.g. sunflowers in Europe this year).
The rain is also migrating North & south. The horn of Africa has had no rain in 4 years. 4 years. That's a clear progression which can be seen coming, before it hits.
Noting that some specific areas are experiencing benefits from Climate Change seems much like a passenger relegated to a cabin near the engine room of the Titanic noting that the in-rushing arctic sea water has made his cabin more comfortable.
A few thoughts as I just became aware of this thread:
Quote:
"Posted by mjolnir:
Another hothouse period was the Paleocene-Eocene Thermal Maximum (PETM) about 55-56 million years ago. Though not quite as hot as the Cretaceous hothouse, the PETM brought rapidly rising temperatures. During much of the Paleocene and early Eocene, the poles were free of ice caps, and palm trees and crocodiles lived above the Arctic Circle.
During the PETM, the global mean temperature appears to have risen by as much as 5-8°C (9-14°F) to an average temperature as high as 73°F. (Again, today’s global average is shy of 60°F.) At roughly the same time, paleoclimate data like fossilized phytoplankton and ocean sediments record a massive release of carbon dioxide into the atmosphere, at least doubling or possibly even quadrupling the background concentrations.
It is still uncertain where all the carbon dioxide came from and what the exact sequence of events was. Scientists have considered the drying up of large inland seas, volcanic activity, thawing permafrost, release of methane from warming ocean sediments, huge wildfires, and even—briefly—a comet."
Quote:
"Posted by business_kid:
When I see two armchair paleontologists having a go at each other, when the topic is Global warming, Ocean temperatures, and the Energy crisis, it's time to go."
- and funny - I too belong to this family of armchair paleontologists
Climate science is a broad field where Bess Koffman in her YouTube video take us on a tour in her lab processing icecores sampled in Antarctica.
The relative old US Geological Survey video "Secrets in Stone" is mostly about plate tectonics where tectonics in the "North Atlantic Volcanic Province" 55 million years ago was responsible for the formation of Iceland.
The PETM epoch is considered the best analog to the present scenario with injection of large amounts of CO2, where a significant difference is the rate in emission - estimated to be 9 times as high now as 55 MIY ago.
Seabed sediments from the PETM is plenty all over the world if drilling deep enough, but also exposed a few places in cliffs, among these on a few locations in Denmark.
Spending a few hours examining a tiny sample of PETM seabed in a school microscope will reveal dozens of microfossils and objects, each one telling its own story. Dinoflaggelates reflect the biological productivity in surface layers and often are proxy's of a specific geological era or salinity, small coccolitophore are made up of calciumcarbonate (with carbon fixed from atmospheric CO2) where isotopic measurements of carbon isotopes reveal information of the atmosphere (especially as the ratio of C12/C13 isotopes is in favor of C12 when carbon is fixed in a biological process), leaves are seldom jagged in subtropical climates and the number of pores under the leaf where the leaf absorb CO2 reflect atmospheric content of CO2. I'm relatively sure one of "my" seeds belong to a Temple Tree family, and another to an extinct species also found in PETM samples from Missisipi (indicating a land bridge Europe- England- Iceland- North America?). Volcanic glass is sharp edged when coming fro land based volcanoes, where ash from drilings further to the south (Bremen, Germany) is smaller in size, implying a northern wind.
Computer climate models are fed with assumptions like these to reconstruct the PETM and is part of the background for reports from IPCC. Though, recently when reading web-sites sitting in my armchair, it appeared as if new 2020 studies on Boron isotopes in coccolitophores contradict much of what until now has been consensus - and that is interesting
Last edited by TheIllusionist; 10-01-2022 at 02:21 PM.
Reason: link to the (over one's head!) Boron isotope paper concluding with volcanic activity as main driver for the PETM added. authors are very well-respected.
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