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Dinosaur Farts Caused Global Warming
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was Alaska part of the Arctic all those years ago? Besides, haven’t we been told those effects are global not local?
Well, the problem is really solved.
They come up with some outrageous stuff. You can only imagine what a dinosaur fart must sound like!
From passing wind out of your ass, to talking out of it……
That’s 70 million years worth of evolution for you.
I know I contribute my own share after a bowl of some good chili. Collards and black-eye peas do the trick too.
Alaska was probably even a little farther north at the time than it is today. It was the probably the most northerly extent of land at the time.
Its just that all the continents were in different positions then. The UK was still attached to Greenland at the time. The (south) Atlantic was a young much shallower ocean then and, as a consequence, global sea level was much higher. Sea level was high enough so that shallow ocean (and therefore warmer) oceans probably flowed across North America from the Gulf of Mexico to the Arctic and across parts of Europe and Asia to the Arctic.
Antarctica was still attached to South America and Australia at the time meaning that the ocean gyres were circulating warm equatorial waters around the continents versus today where Antarctica is isolated in an extreme polar climate by the Antarctic Circumpolar Current.
So, there was no polar ice at the time except in the depths of the winters. The Earth’s Albedo was, therefore, much lower and it was quite a bit warmer as a result. GHGs (and methane from dinosaur farts) do not need to even play a part when the proper continental allignment/Albedo scenario is used. (And the dinosaurs did not like the cold that ocurred in the winter regardless of the generally warmer conditions).
I fail to see how any number of normal animal activity, no matter how big, can contribute to the GHG long-term. Sure, they dump tons of methane in the atmosphere…but where did that carbon come from? It came from plants, and if they hadn’t been consumed, those same plants would have been dumping compounds with higher IR activity, such as isoprene, pinene, and terpenes in the atmosphere. Current estimated emission of isoprene from plants is around 1100 Tg/yr. May have been higher then. Oh, and animal activity also produces ammonia. As the only significant gas phase base in a predominantly acidic atmosphere, ammonia leads to a large increase in aerosol quantity via neutralization reactions with compounds that otherwise would remain in the gas phase (and absorb more incoming and outgoing radiation at that).
Also, what’s the difference in a dinosaur eating a plant, turning it into methane in a day, whereas bacteria would consume the plant when it dies, turning it into methane in a year? In the long-term, there should be no difference!
-Scott
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