Twenty interglacials each lasting 10 or 11 thousand years during the last two million years is more than coincidence. Twenty glaciations each lasting around 90,000 years is more than coincidence. Have these not been Gaia's cycles during the Quaternary Period of her development - just as female Homo sapiens function in different ways during their development? Is glaciation not similar to menstruation in that it is a necessary part of a cycle which enables the organism to support life?
The last three interglacials ended in 20 year transitions into glaciation with the violence and chaos caused by the differential greenhouse effect. Is it not true to say that the climate shift is no more than premenstrual (glaciation) tension? Is it inconceivable that Gaia has fertility cycles and symptoms that can be diagnosed and treated?
For Gaia, pollution is a natural phenomenon. The excess carbon and other gases at present in the atmosphere cannot remain there. Gaia will recycle them - with earthquakes and cooling higher latitude oceans acting as 'sinks' for atmospheric carbon. So does global biomass of course. Is it not glaringly obvious that we can remove excess carbon from the atmosphere and stabilise it at postglacial climatic optimum levels of 270-280 ppm by returning the carbon to earth as trees where it is stored during interglacials?
Ozone depletion is caused by gases interacting with moisture in the atmosphere. It is true that nitrous oxides, CFCs etc are increasing. But it is also true to say that there is more moisture (cloud cover) in the atmosphere, evaporating from the overheating tropical regions and travelling poleward.
Is it not time to begin remineralising the earth with crushed rock dust, simulating glaciation, to enable the earth's soils to grow and support the biomass necessary to stabilise atmospheric carbon at mesocratic phase levels?
In similar circumstances a gynaecologist would not let nature take its course. It is just as natural for a gaiaecologist to intervene.
Cameron Thomson, Hamaker Coordination, No. 3 Cottage, Scotson Farm, Auchterhouse, Dundee DD3 OQT, Scotland.