Glad you are able stay with it. We might both learn something.
To begin , this a very complicated and difficult , at least for some, divisive topic.
When I was growing up, and even my parents generation, there was a far more harmonious " village town square " type of atmosphere at Sunday lunch discussion. The newspaper and radio were well respected, and for the most part, believed. There was the odd tiff between a Catholic and Protestant, the odd Scotchman vs the Irishman joke- but nothing even close to the toxic anger , about almost everything , as we see today.
Starting in the late 1990's -- Political Correctness became the buzz- shopping malls stopped playing Christmas carols, I remember a good friend trying to correct my speech when I wished her a merry Christmas over the phone- " Oh, I don't think you should be saying that anymore-just think of those people who don't believe in it." " You can't use the word wife or husband or spouse, you've got say partner so it's more inclusive".
And so, piece by piece, a bit here, a bit there , our whole social structure was being pulled apart. And so the anger and rage - where a group of people can't sit around the kitchen table and have a discussion about anything, because public discourse has become politicized- say one thing about racism, colonialism that contradicts the prevailing narrative -your career is over - your life potentially ruined.
So is it any wonder, that the topic of climate change/ global warming has become a one sided , politically correct narrative , and if I step outside it's very narrow boundaries , and say so, I get a label around my neck- something like "climate change denier " or "a follower of Donald Trump " --kind of lumped in with the racists and white supremacists.
So with that out of the way---
The first thing I don't understand is --- once upon a time the earth was covered in ice , and then some how -for some reason it began to melt- there were no animals , no humans and no coal fired power stations. How come ?
New University of Melbourne research has revealed that ice ages over the last million years ended when the tilt angle of the Earth's axis was approaching higher values.Since the mid 1800s, scientists have long suspected that changes in the geometry of Earth’s orbit are responsible for the coming and going of ice ages – the uncertainty has been over which orbital property is most important.Petra Bajo’s paper,
Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition
, published today in Science, moves closer to resolving some of the mystery of why
ice ages end by establishing when