Maybe because the earth was very different then? And nowhere we want to go back to.
So you're saying scientists that look at the evidence are all in on it? Or incompetent? Maybe the 97% isn't accurate. But the vast majority agrees with anthropogenic climate change.
Even as CO2 levels were very different in the past, so was the C-14 content. That's why there is a complete difference between the time-passage that current scholars suggest, and the time-passage that the Bible reports on.
It is suggested that Gobekli Tepe in Turkey is, say, 12 and a half thousand years old. The Bible says that the whole universe is only a little over 6,000 years old. C-14 content from before the Great Flood of Noah's day was extremely different, being changed by the things that caused the Great Flood.
The whole idea of a 13 or 14 billion year old universe is 100% speculation by scientists who would rather be speculators than scientists.