How many times does it need two be explained... over and over?
Its not a "conundrum" and the answer isn't a hypothesis (hypothesis is statement used to research and either prove or disprove the hypothesis).
I can easily provide further info, but
@bumblingninny and
@Dave sss have already put up buckets of suitable information. If you reject their posts it only shows that you are merely trolling and virtue signalling to fellow anti-science conservatives (the cult of anti-AGW is the same as the anti-vaxxers who refuse to accept scientific evidence).
But I will offer one piece in the puzzle - because I care.
When our planet formed it had no atmosphere and no weather, hence no climate. The rocks that had banged together contained iron and so gravity developed through electron exchanges. As the planet attracted more matter it expanded in size and over a billion years or so it developed a crust which cooled. Volcanic activity became the norm and so clouds of ash and gases made by the heat from the now core of the planet made a sulphurous atmosphere. This also contained some hydrogen and oxygen, which when combined and cooled made sulphuric acid rain, and nitrogen - no carbon had yet been created.
Over the next billion years the planet cooled further and the acidic water that formed in the atmosphere pooled and formed vast oceans. Some of the volcanoes were now covered with water and the process of heated gases from the volcanic vents caused a chemical stew which enabled the formation of slime mould. This was the initial primeval life form.
Over the next billion years the slime evolved through mutations into different single celled life forms. The acidic oceans gradually were diluted with increasing quantities of water. some slimes developed into plant forms, some into what eventually became animal forms (bacteria) and some stayed as slime moulds, algae and other primitive forms. Gradually the plant forms began to use oxygen as an energy source splitting the hydrogen from the o2 to make energy. this enriched the potential life forms and they slowly evolved to become increasingly mobile and required additional energy. Carbon had become part of the plant forms and animal forms and was used to form multi-cellular structures in the plants. Bacteria began to find foods containing carbon by engulfing plant forms and so animal forms began to develop multi-cellular structures too.
The next billion years or so saw the development of increasingly complex life forms as well as increased survival of more competitive forms. Those that could produce more energy through absorption/ingestion of carbon and oxygen increased in size and ranged more widely. Eventually some plant forms grew closer to the water edge and developed the ability to use solar energy as well as carbon and oxygen - this was the origin of photosynthesis and due to the metabolic processes the chemistry of life evolved to absorb o2 and carbon. Plants began to respire as the sunlight became the means of combining carbon and oxygen to form ever-growing scaffolds of cellar forms to release oxygen in the sunlight and carbon dioxide in the dark into the atmosphere. More carbon was refined in the plants and the atmosphere became oxygen rich. This gave them such a boost that they migrated from the water to the land and the plant forms became increasingly stationary as they grew roots into the rock. At this time there was still very little atmosphere - very thin but rich in nitrogen, hydrogen and oxygen.
As plant forms became more complex with the added boost of solar energy they grew larger and more numerous. They now took nitrogen and carbon from the rocks of what was becoming soil. Along with the plants, simple celled bacteria, moulds, algae and fungi developed in the fissures of the rocks and these added their waste to the new soils. This was the beginning of the Carboniferous Age.
During the next billion years plants became the dominant life forms along with the bacteria etc. Many billions of tonnes of carbon was released into the atmosphere and plants generated increased trillions of tonnes of free oxygen. AS plants died they were broken down by the bacteria, moulds, fungi etc and the carbon, now the largest chemical in the plants structure, entered the soil. Many millions of years of plants layer upon layer of carbon was deposited in the soil. So coal and other carbon-based rocks were formed. Coal was laid down over most of the earth surface. Coal which formed near volcanoes was heated and other carbon rocks, such as diamonds, developed.
Ok are you with me so far?
Millions upon millions of tonnes of carbon laid into the ground was covered with other material through erosion of the rocks, now increased through increased rain, the tread of massive animal feet, the roots of plants breaking rocks down and the action of moulds and bacteria etc. and of course more fallen dead plant life. It took around half a billion years to make coal.
Now over 250 years humans have dug up millions of years of coal and burned vast quantities which has profoundly changed the chemistry of our atmosphere.
500 million years of carbon released over 250 years. D'ye get the picture.
Now I suppose you'd like to know about the properties of carbon that has caused energy retention in the atmosphere?
Go ask yer mother little boy... I'm tired.
scott.