changing climate

[good2skull]

I read in a newspaper that a chunk of antarctica the size of Wales broke awat from the mainland and fell into the sea. Scientists suggest that this could reflect the changes in our climate due to global warming. However I have read of a different theory, that of lithospheric shift where the crust of the earth moves over the moulten mantle rather like an orange peel would if detached from the fruit while still covering it. The result - the poles drift as does the rest of the world. Freeze dried prehistoric fruit trees found in the arctic cirle seem to support this theory (i.e. it was once much nearer to the equator) and those in the know say that a complete polar inversion has happened during earth's history and could happen again. Could this be a factor in what we perceive to be the greenhouse effect ? Thoughts please..

[incitatus]

nope, cos its still there. If antarcticea had drifted enough this century to explain its deglaciation then the antarctic research stations would have noticed the shift in the stars by now. Also continental drift does not explain warming. If antarctica were drifting wouldnt you expect there to be an enlargement of the ice cap on the side nearset the pole as it drifts away? there isnt. Global temps are rising. Why is a good question, could be greenhouse effect, could be not, but moving the continents around doesnt explain the heating. It could explain this particular incident though. And yes antarctica used to be quite sunny. the himalayas used to be a seabed and africa was once part of siouth america.