(by Francis)
may seem strange to us that the earth needs to keep cool life, perhaps because for us mammals 'life' is synonymous with "heat" ... Except that
J. Lovelock discovered decades ago that the story was a bit different from how we were told at the school, namely that the earth would have life because he was at the right distance from the sun , etc., etc. ...
In fact, Earth has life because it is a living organism itself , for reasons we do not know. The distance from the sun, per se, has never been a decisive factor for life, because the sun was a young star when life evolved on earth, and like all young stars producing less heat than today.
A heat that was not enough for life as we know it today sicché si potrebbe dire che allora la distanza dal sole era in teoria "troppo grande" per far prosperare la vita, e la terra troppo fredda per ospitarla.
Eppure vita ci fu, e la terra cercò di "riscaldarsi" favorendo lo sviluppo di batteri che producevano metano come risultato della loro digestione di alghe. Il metano è un gas-serra potente, capace di intrappolare il calore del sole all'interno dell'atmosfera e quindi di aumentare la temperatura globale.
Oggi però il sole è una stella vecchia , e come tutte le vecchie stelle ha aumentato la sua produzione di calore, tramite la fusione nucleare dei suoi gas, e si avvia alla sua naturale death, what will happen with a huge nuclear explosion. Being warmer, it is already theoretically "too hot" to support life on earth, now and then the distance of earth from the sun can again be technically considered "unsuitable" for life on earth, but this time because "too small ".
So today the earth is trying to do the opposite of what he did with methanogenic bacteria: to allow the continuity of life, its need now is to cool . And that the earth is "sacrificing" the poles and the tops of the mountains through the ice, which are the huge white screen capable of reflecting solar rays cooling as the global temperature.
commmovente I find very beautiful and this ability to "Gaia" (Earth as a living organism according to the theory of J. Lovelock, ed) to keep alive and hospitable for his "children" with these efforts absurd regulate the climate and chemistry of the oceans, putting on ice and covering up the stock of carbon accumulated in the underground plant and animal tissue in fossils.
If it were not a living planet, today the temperature is too high for life, given its distance from the sun. But today the sun is a star too old and radiates heat, Gaia must step up efforts to keep cool enough to stay alive.
This effort requires that you return quickly to an ice age . The ice age is not that lifeless desert of ice that they show in cartoons, because to the spread of ice at high latitudes is the emergence of land to the south, which were covered by seas. Land where he now lives can flourish even more florid than that there is now in the land in our latitudes.
The irony of the current situation is that now that Gaia needs to cool down, and that would trigger a new ice age, man hath been multiplied enormously and is preventing the cooling attempts, so far as to reverse course, even lead to a further increase in temperature.
It 's like a boiler is overheating and would need more frequent breaks to cool, and we encourage this rather than throw more fuel on the fire and close most of the relief valves ... Crazy, no? But it is exactly what we are doing now to "our mother", as they think the Native peoples. A huge living organism, perhaps with his "mind" , as the brave scientists Deep Ecology now envisaged, in line with the old conceptions of Plato of "anima mundi" and the knowledge of indigenous peoples .
Maybe now the mind of Gaia is restless and angry towards her children crazy. It's easy to smile at these ideas, conceited and insensitive as we are Western, we have forgotten all avenues of knowledge not through reason. But maybe they were right, who knows ...
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