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Graeme No.3

Good news…the great extinction at the End of the Permian was caused by

Excess CO2 causing warming – as volcanoes don’t emit CO2 (ABC, The Age, The Guardian etc.) that would require only 29 trillion tons of lignite being burnt. It is JUST possible that lignite MIGHT have formed by then.

Otherwise the extinction was caused by the burning coal emitting nickel, mercury or arsenic.
As I pointed out on a previous thread coal/lignite can’t burn when covered with 2 kilometres of molten rock.

that leaves Sulphur oxides (which form sulphuric acid with water), or hydrogen fluoride(in water it etches glass) or nitric oxides from lightning strikes etc. (nitric acid with water). As the ABC ignores these we must rely on nickel sulfide, methyl chloride, methyl bromide, hydrogen sulfide as put forward as possible causes. (the nickel acting as an essential element for methanogens which would have then switched to a sulphur cycle and the resulting hydrogen sulphide poisoning the sea creatures.

Alternately there is the claim that extinction wasn’t due to global heating but to a severe ice age which lowered sea levels by 280 metres. While agreeing with a cold period others question the timing, and assigning it closer to the previous extinction event (the Guadalupian) 5 million years before. Others are undecided as to the length of the eruption of the Siberian Traps with estimates of 2 million years, or 900,000 years, or a series of minor eruptions with extinction coming after a short, sharp 37,000 years. Others have pointed out that some species became extinct before or after the event.
But it any case we can be glad that THE SCIENCE IS SETTLED.
“I would rather have questions that can’t be answered than answers that can’t be questioned.” Richard P. Feynman.

“The further society drifts from truth, the more it will hate those who speak it.”
George Orwell


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