Soloist wrote: ↑Fri Dec 15, 2023 12:52 pm
Martin wrote: ↑Fri Dec 15, 2023 12:47 pm
Interesting thread.
From the "Science Times" of the NYT, dated December 12, 2023
"According to the fossil record, geology and evolution have been engaged in a dance for 3.8 billion years, since our planet was only 700 million years old. It was then that the first single celled creatures appeared, perhaps in undersea volcanic vents, feasting on the chemical energy around them.
The population of cells has been growing exponentially ever since, even through geological disasters and extinction events, which opened up new avenues of evolution.
The seeds for animal life were sown sometime in the dim past when some bacterium learned to use sunlight to split water molecules and produce oxygen and sugar. By 2.4 billion years ago, with photosynthesis well established, the amount of oxygen in the atmosphere began to rise dramatically. The Great Oxidation Event 'was clearly the biggest event in the history of the biosphere,' said Peter Ward, a paleontologist from the University of Washington.
Without photosynthesis, the rest of creation would have little to eat. But it is just one strand in a web of geological feedback loops by which weather, oceans, microbes and volcanoes conspire to keep the globe basically stable and warm and allow life to grow."
My favorite word in this article is "conspire".
Lot of ideas there with no evidence. I wonder why they teach things that have no evidence.
Actually there is an immense amount of evidence.
Take the oxidation event referred to above. Which was actually a period lasting millions of years. The chemical composition of the oldest rocks on earth suggest that there was very little free oxygen in the earth's atmosphere and vastly more carbon dioxide and methane. We also know from the composition of such rocks that the early oceans were rich in iron. Iron is one of the most abundant elements in the earth's crust and most soluble in water so it would have been an abundant mineral in the early oceans due to erosion.
Iron oxidizes very easily in the presence of oxygen as anyone who has ever seen rust knows quite well. Without protection, raw iron and steel will begin to rust almost overnight. And rust (which is iron oxide formed by the reaction of iron, oxygen, and water) is far less soluble than free iron ions. Which means that if iron oxide forms from the reaction of oxygen and dissolved iron in sea water it will form solid deposits and settle to the bottom. So what do we see everywhere around the world during the time period of the great oxidation event when the first photosynthetic bacteria began to convert carbon dioxide into O2? We see the same identical layers of red iron oxide across the globe in ancient layers of sedimentary rock. It is an exact fossil footprint of this event.
When the first photosynthetic organisms in the world's oceans began to produce oxygen it would have mostly been consumed by reacting with iron. And it would have taken millions of years for the process to have used up all the available iron dissolved in the oceans before the surplus oxygen could have started to accumulate in the earth's atmosphere. And that entire process would have resulted in banded layers of iron deposits in all the sedimentary rocks formed at that time around the world.
Now as with all science, it is more complicated than I just described. But to say there is no evidence is patently wrong. There is an immense amount of information, observations, and data that have been collected and they all point in this direction. Have scientists used time machines to go back 2.5 billion years and take air and water samples? No, of course not. But that is not the same thing as saying there is no evidence. Clues are all around us. And science is about finding and interpreting the clues that we do have.
Willful ignorance by conservative Christians is not a good look and I expect it is partly why interest in Christianity is falling off so dramatically among the young.