There are popular among the ignorant left several myths pertaining to climate. The first myth of climate catastrophism is that the earth is fragile. This myth is so preposterous it is not hardly worth discussing, but the fact is the earth has been here for 4.5 billion years and will be here for at least additional billions of years. A second popular myth is that carbon dioxide in the atmosphere is the primary determinate of climate on earth. A third myth is actually religious in character and it is that an existential crisis is upon mankind and that we will all likely die in the next ten or twelve years unless the United States which is solely responsible for this catastrophe spends trillions of dollars reducing the liberation of carbon. Still another myth was perpetrated by the corrupt and ignorant Supreme Court which some time ago ruled that carbon dioxide in the atmosphere is a pollutant. Now in order to lift this heavy veil of ignorance we need to review a few actual facts.
The seminal work in climate was done by a Serbian scientist by the name of Milankovic. What Milankovic showed over the course of his career in the first half of the twentieth century is that climate on earth is determined by huge natural forces including solar output, celestial mechanics, and the interrelation of these with geophysical forces. His work has been refined by recent scientific advances and discoveries but never been disproved. Today we could generally say that climate is determined by solar output, celestial mechanics, the biomass of the planet and plate tectonics.
Over the lengthy geologic history of the earth carbon dioxide in the atmosphere has been much higher and lower than it is today. Over this period the average temperature on earth has been much higher and much lower than it is today. At times the earth has had tropical or subtropical conditions nearly to the poles. At other times the earth has been glaciated all the way to the equator. Ocean levels over geologic time have been hundreds of feet higher than today and at other times hundreds of feet lower.
Now what is an existential crisis? An existential crisis is one which endangers all life on earth. There are things which could happen and which would constitute an 'existential crisis'. For instance, if there were to be an imminent impact event of a Mars size body this would be an existential crisis. Or, if the earth were to suddenly lose its magnetic field this would constitute an existential crisis because the surface would be irradiated and the atmosphere would be blown off the planet. These events are possible but highly unlikely and so the earth is in no danger at the moment of any existential crisis.
In recent geologic times the earth has been passing through cycles of glaciation and de-glaciation. On average the planet has been warming since the end of the last ice age some ten or twelve thousand years ago. The cycles of celestial mechanics would seem to indicate that the next secular change in climate on earth will be a new period of glaciation which could begin at any time in the next ten or twenty thousand years.
