Based on the weather data, anthropogenic Carbon Dioxide emissions are NOT causing temperature changes in the Earth. More evidence that people are not responsible.
By Ian Bradford
The climate alarmists claim that human caused (anthropogenic) emissions of Carbon Dioxide are causing global warming.
Here are two graphs put out in previous articles. First, the familiar graph going well back in geological time of the Earth’s temperature and the Carbon Dioxide levels. This graph has been assembled using proxies — physical characteristics such as–
* tree rings which give an idea of temperature at the time and
* ice cores which can give the Carbon Dioxide content.
Note that at about 450 million years ago the temperature dropped 12º C but the Carbon Dioxide level rose to about 4500 ppm. (parts per million.) Then from 150 million years ago the Carbon Dioxide level dropped steadily to the present day, while the Earth’s temperature stayed at about 22ºC for most of that time. (About 7º C above where it is now!) Further places on the graph show that there doesn’t appear to be any correlation between the amount of Carbon Dioxide and the Earth’s temperature.
Since 1900 the Earth has been through three or four hot and cold periods. Below is a graph showing the temperature falling in the period after the Second World War. All this time, the Carbon Dioxide level was rising.
The blue line shows the Carbon Dioxide rising steadily. The red dotted line shows a steady fall of 0.1º over the 30 years period.
According to NOAA, the earth has cooled just a bit under 0.1º C in the 8 years from 2016
to 2022. Hadley and the MSU satellite show that from 1998 to 2008, the Earth’s temperature fell by 0.78º C. The US Climate Reference Network showed that the Earth’s
temperature fell by 0.37º C between 2205 and 2023. It seems that the Earth’s temperature has been falling since 1998. Remember, all this time Carbon Dioxide levels were rising, and we were constantly told this rising Carbon Dioxide was warming the planet. Of course, none of this is enough to change the views of Climate Alarmists cult.
Meteors and their impact
A meteor — the Chelyabinsk meteor — entered the Earth’s atmosphere over the southern Ural region in Central Russia on 15 February 2013. The meteor was approximately 18 metres in diameter and weighed about 9,100 tonnes. Its speed on passing through the earth’s atmosphere was about 54,000 km/h. The light from the meteor was briefly brighter than the sun.
The object exploded in an air burst at a height of about 30km above the Earth’s surface. The explosion generated a bright flash, producing a hot cloud of dust and gas that penetrated to 26 km above the Earth.
In 2012 NASA put up a satellite — Suomi — and put it an orbit enabling it to track anything in the atmosphere over the whole surface of the Earth. The satellite then tracked the dust from the meteor explosion. The dust was scattered evenly, but only in the Northern hemisphere, none in the Southern.
In the years after 2000 large numbers of big forest fires occurred in the northern hemisphere.
Larger than normal amounts of Carbon Monoxide have been emitted into the atmosphere,
greatly increasing the amount there. The spread of the Carbon Monoxide was mapped by NASA satellites. Carbon Monoxide is of course, a poisonous gas, and regarded as a pollutant. As with the meteor dust, all the Carbon Monoxide was confined to the northern hemisphere.
Here’s another example closer to home.
The eruption of the Tongan volcano in January 2022 produced the largest underwater explosion recorded by modern scientific instruments. It blasted an enormous amount of water into the atmosphere — an estimated 150 million tonnes.
Below is the map of that water vapour a year later in December of 2022. What do you notice about it? All the water vapour is still in the southern hemisphere.
It appears that atmospheric particles emitted in either hemisphere stay in that hemisphere. Why does this happen?
The Coriolis Force
It’s all to do with the Coriolis effect. This was first explained by Gaspar Coriolis, two centuries ago. The Earth is rotating on its axis. If you view the Earth from the North Pole it rotates in an anticlockwise direction. If you view the earth from the South Pole it rotates in a clockwise direction.
Let’s concentrate on the northern hemisphere. If you are standing at the Equator facing the North Pole the earth is spinning in a clockwise direction. Just think about it for a minute. Now the equator has to move 40,000 km in one rotation while a metre or two from the north pole the distance moved in one rotation is very small — a few metres. So any point on the equator needs to be travelling at 1600 km/h to complete a revolution in 24 hours. At the pole, however, the speed is tiny, perhaps something of the order of 0.0001 km/h.
We don’t notice this tremendous speed at the equator and elsewhere because the air is moving at the same speed, and we don’t fall off because gravity holds us to the Earth. OK so we are standing at the equator looking towards the North Pole.
Air heated by the hot tropics rises and moves towards the North Pole. This air is moving at
1600km/h in the direction of rotation of the Earth. Now you can see from the diagram below by the time this air gets to about the half-way mark the Earth there is moving at 1400 km/h. So the air has moved further to the right than the earth has. By the time the air gets about ¾ of the way to the pole, the earth there is moving at 800km/hr so now the air at 1600 km/h is way ahead of the Earth. So the air moves in a curve (The red line). A fictitious force appears to be pushing the air to the right.
The reverse happens when air travels from the North Pole to the Equator. The air starts
out with a very slow speed to the right. (The speed of the Earth near the North Pole). By
the time the air gets to the 800 km/h mark the Earth is ahead of the air, and by the time the air gets to the 1400 km/h mark the Earth is way ahead of the slow moving air. So air
moving towards the equator moves to the left. (The green line). These are known as “trade winds”.
Now if the earth was still — not rotating — the hot air high up in the atmosphere at the equator would travel directly to the North Pole where it would cool and falls and replace the cool air that has headed to the Equator. So we would have a circulating cell. But the Coreolis Effect changes this circulation and the result is the formation of three smaller circulating cells.
These three cells are confined within certain ranges of latitude in the northern hemisphere and the equivalent in the south, and don’t move out of these ranges.
The net result is that air in the northern hemisphere stays in the northern hemisphere and
air in the southern hemisphere stays in the southern hemisphere.
Comparison of the anthropogenic emissions in the northern hemisphere and those in the southern hemisphere
Diagram from Wiktor Kobylinski
Emissions from burning coal
The comparison is from burning of coal. Most would come from China, India, Russia and the USA. and this has increased in recent decades. It is reasonable to say that because of the
much larger population, more vehicles. more planes, more industries, etc. that the emission of Carbon Dioxide from all sources, in the northern hemisphere far exceeds the emissions in the southern hemisphere.
So we can see the northern hemisphere (all the brown and black) in 2021 put up about 80% of all anthropogenic (man-made) Carbon Dioxide emissions.
Carbon Dioxide emissions and their effect on temperature
Now all those Carbon Dioxide emissions in north of the Equator stay in the northern
hemisphere. So you would expect the northern hemisphere to be somewhat warmer than the southern hemisphere. This is because the climate alarmists tell you increasing Carbon
Dioxide put into the atmosphere by humans is causing the Earth to warm. Some alarmists are actually saying the northern hemisphere is warmer. They probably don’t know about the Coreolis Effect.
The media, particularly NZ’s TV, have never mentioned the RECORD LOW
TEMPERATURES recorded in the northern hemisphere winters over the past few years.
Anybody can check this on the internet. So it doesn’t appear that the northern hemisphere
is warming.
Temperature measurements taken in both hemispheres of the Earth over the past two
centuries particularly in Warsaw in the north and Sydney in the south show that the
temperature changes in both hemispheres are very similar. So temperature changes on the
Earth are global.
So what about Carbon Dioxide concentrations? Below are Carbon Dioxide concentrations
recorded at Mauna Loa in Hawaii and Cape Grim in Tasmania. So one from the northern
hemisphere and one from the southern hemisphere.
The Cape Grim on the right starts at 1975 and goes to 2020.
Taking the year 2020, going up from 2020 and across, Mauna Loa recorded about 409 ppm Doing the same with Cape Grim, it recorded about 407 ppm. These readings are almost identical. The readings from Antarctica are very similar.
- Carbon Dioxide readings are the same in both hemispheres!
- Temperature readings are the same in both hemispheres!
But in view of what Climate Alarmists claim, wouldn’t you expect them to be much higher in the northern hemisphere since there are many, many, tonnes more of anthropogenic Carbon Dioxide in the atmosphere there? And don’t forget all these emissions are confined to the northern hemisphere.
But measured temperatures are virtually the same in both hemispheres and measured Carbon Dioxide concentrations are the same in both hemispheres.
The conclusion from this is that anthropogenic Carbon Dioxide emissions are NOT causing temperature changes in the Earth.