reply to post by Rockpuck
Well, Rockpuck....a very cogent idea!
Yes, we know that there is a landmass...an entire continent, under all of that ice in Antarctica.
Tectonic plate movement, it seems, has put that continent at the South Pole....but, in Human time spans, it is an anomally.
There was a time, millions of years ago, when there was a "Super-continent"....called 'Pangia' (or, alternatively, 'Pangea')
Humans had not yet evolved, but we intelligent 'apes' can infer, through scientific discovery, how the tectonic plates move, and work it
Thing is....harking back to my earlier posts....the surface of the Earth is so thin, and has such little mass relative to the rest, the CORE of the
planet, that minor changes of oceans or land distibrution, while seemingly HUGE to us, are largely unnoticed by the Earth, as she merrily keeps
rotating and flying in her orbit around the Sun.
I mean....the Sun is about 5 BILLION years old. The planets, even the one we currently live on, formed at about the same time....congealed, perhaps
is a word to use.
These time-frames are SO outside normal Human comprehension that it beggars belief, I understand that.
IF a Human life is eighty years, and IF you remember your parents and grandparents, or even great-grandparents.....you've gone back, what? 200+
We're talking about 200+ years times millions....or more!!
Species on Earth have survived terrible catastrophes....life adapts to environmental changes.
BUT, when bad science intrudes....well, someone has to call 'FOUL'!!!
The Earth's axis will NOT be affected by a subtle shift of weight distibrution by moving ice floes. NO AMOUNT of ice can negate the angular momentum
of the Earth, as it rotates!!!!
Again, to clarify....our Earth's axis is tilted, compared to its plane of orbit, by about 23 degrees. THIS is why we have 'seasons'. HOW did this
happen? Well, current theory is at some distant past, an event occurred....a collision with a very large object, as the Solar System was still
forming (well before Humanity even thought to evolve) caused our planet to change its axis....it had to be a BIG collision, might even be why we have
such a large Moon....
Anyway, it (the collision) provided a very stable planet/moon configuration....something that eventually led to our evolution as a species.
Good enough answer to the 'ice-shelf' question???