"Twenty five years ago, at university, at post-graduate level...

"Twenty five years ago, at university, at post-graduate level the following was taught, with science in depth behind it:

1) the earth's orbit is an ellipse, with the sun at one focus

2) the earth spins around an axis, and that axis changes with time

3) the earth rotates in a plane, and the angle of that plane changes with time as well."

See nothing wrong with the above
- all follows from Newtonian Physics

But do you accept that the amount of c02 influences Earth's surface temps and climate ?