CAUSES OF GLOBAL WARMING

There are many factors that can contribute to a rise in global temperatures.

Here are a few of them:
1. Increases in the nuclear activity of the Sun.
2. Changes in the elliptical shape of earth's orbit.
3. A decaying earth's orbit.
4. Accumulation of green house gases.

I have no access to any scientific data regarding changes in the earth's orbit, or changes in the nuclear activity of the sun. Therefore, I will only discuss green house gasses.

I am relying on Wikipedia for the data relevant to the accumulation of green house gasses. However, I believe that scientist did not have the necessary data to properly calculate the amount of methane that  will be released once all the permafrost has melted. I believe (but do not have the necessary data to prove) that methane is accumulating in an increasing, not at a constant rate, but in an increasing rate of increase. In other words, the amount of methane that is accumulating in the atmosphere is increasing by a larger amount each year.

I also noticed that the rate of CO2 (Carbon Dioxide) accumulation also seems to be increasing, as illustrated by the green line that I added to the to the CO2 concentration graph. The green line makes it clear that graph is a curved, similar to be population growth curve of the early 20th century (a geometric progression).

 

Here is a graph that illustrates the souses and destination of CO2:
 

And this graph shows cumulative CO2 emissions by-country:



And this show the accumulation of methane:


Physical drivers of climate change:


Some of the above data is about 3 years old. When the new data is graphed, I believe that methane will be the number one contributor to climate change, because of the large amounts under the permafrost.

In the graph bellow, I pointed at the two areas where methane, from the permafrost, is accumulating.
Notice that they are the areas were the temperature has risen the most.



There are some persons who might say:
"Temperature and amounts of CO2 and CH4 has varied in the past"
Yes, and scientist have been analyzing air trapped in ice-cores from the Antarctic and Greenland.
Bellow is a graph showing that, from 420,000 years ago until 2013,
there has never been so much CO2 and CH4 in the atmosphere.



REFERENCES:

https://climate.nasa.gov/evidence/

https://en.wikipedia.org/wiki/Greenhouse_effect

https://en.wikipedia.org/wiki/Climate_change

https://en.wikipedia.org/wiki/Methane

https://en.wikipedia.org/wiki/Carbon_dioxide

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