When I was a young girl, my dad took me out on a machine called a weasel (or snow cat) in the far north of Alaska and pointed out that this entire area was once covered with forests. When we were in the Middle EAst before it was called the Middle East, he pointed to the desert and asked me if I knew what used to be there—forests. He had an oil exploration company—seismograph.
If manmade warming is actually happening—I haven’t heard any proposal that would really stop it. In fact, I don’t think anything will stop it, whether or NOT it is man made. When it comes to this planet, one thing is certainly a given—change is inevitable, constant, and not always very predictable in geology and/or meteorology. As for me, my first degree is in science, and right now, I have just experienced living through the third coldest October on record.