The amount of tilt that the earth incurs in its yearly rotation of the sun, its a rotational axis has seemly decreased from 26 to 23.5 degrees, and this would decrease seasonal changes between hot and cold at various N and S lats. The way to visualize this is best done through drawing a central line through the solar poles, and then through the earth's polar axis, and this angle between the two is where the difference occurs.
So this is not actually down to a change in the point on the globe that is its central axis of spin is, as we know that this has changed and will continue to change with time, it is down to the amount of tilt that determines winter and summer in the northern and southern hemisphere as the yearly orbit progresses (the earth doesn't swing back and forth, it is only when on one side of the sun the NH is nearer, on the other it the SHem is as the axis point in relationship to the heavens remains static on the pole star at this time, so the movement is like a cone or circular dowsing pendulum with the sun in the middle of it.)
With no tilt to the earth, in its orbit around the sun the temp would remain a constant throughout the globe but it would still be warmer at the equator than the poles just because of the curvature, and any temp variation would be because of the orbit path alone. In a purely circular orbit there would be no winter or summer, and in an oval orbit there would be a winter and summer (to the same degree at northern and southern lats) variation.
So the axis of the pole could remain exactly as per but still the axis tilt could be totally different. The change would occur in the pole star though as the axis would point to a different position in the heaven's, and this change in the course of the stars would concern with the ancient description of what happened.
Now secondly, as we were discussing the change between the earth energy grid, this would mean a difference between true Magnetic North and Axis North - so what is the difference with this over time? Is it a constant or does it vary greatly?
And now getting back to our last posts about the hidden streams of energy within the body of the earth (within our own body) that is not of the time/space, which I refer as the core stream or the centre of the helix. The information this stream contains is the precursor to what appears in the visible universe as it can access any point at any time/space in the universal lattice. The information flows over the event horizon for a point that cannot be known but we can know it is there because we can read the information that flows from and back to it as a set of laws or rules through which all things come into being (this information governs all changes that occur in the atomic or sub-atomic levels and they are set into a firm maths). In other words all parts in the atomic lattice are in touch with the source of energy, at all times in the cycles from beginning to end. As time/space does not exist for the core stream of information that is present in all things, each electron, each strand of DNA, and each cell therefore has a part of it that functions in dimension beyond time/space in the EM spectrum but we cannot penetrate this stream by conventional means. As with x-raying DNA its central part appears to have nothing in it, as its central core is functioning higher on the EM spectrum than X-rays, and they are about at the highest detectable level in the visible universe. So we know there are high levels of dimensions flowing across event horizons as is the case with Hawkin's Radiation, and we also know that energy realms that we can observed to be within the body is bound-up or closed-up in limited space/time.
I hope this gives some ideas for debate on this subject (hope it even make some sense) - I've been doing a bit of using the day-dream stream to visualize what might be going on - Paul.