Climate change has been on most people’s minds since Greta Thunberg at the latest.
Even if you don’t like her, we unfortunately forced to admit that climate change is, and ever has been, the greatest threat to humanity.
Almost every process emits greenhouse gases. The car, animal keeping and electricity power generation.
CO2, CH4 and maybe SF6. You may have heard all these formulas before, but what do they mean?
These are all greenhouse gases. Carbon dioxide (CO2), methane (CH4), and sulfur hexafluoride (SF6) are released into the air by burning fossil fuels and settle in our atmosphere. 
The Earth’s atmosphere is thin and fragile. Moreover, it is a requirement for the emergence of life on a planet. Greenhouse gases settle and linger in it for several years. Methane has a residence time of about ten years, nitrous oxide of about 100 years and hexafluoroethane even of about 10,000 years. It is a bit more complicated with CO2, since much of it is already re-bound by the ocean and by plants on earth. However, it is said that half is removed after about a few decades.
Greenhouses are used especially in the gardening industry. They store the sun’s heat and thus enable a warm environment without energy usage. The earth does almost the same. The sun rays that fall on the earth are reflected back into space. As a result, they have to pass through the Earth’s thick atmosphere. Parts of the radiation are stopped by the atmosphere and the greenhouse gases in it and are reflected back to the earth.
Is Climate change now man-made or not?
Unfortunately, the conclusion is that increased emissions from humans are related to the rising temperature since then. Not only are these two phenomena related, but we also understand the science behind them. It is impossible that it is just natural climate change.
Yes, there is natural climate change, but….
Today, it is possible to differentiate exactly and to prove that the CO2 emissions come from e.g. factories. The carbon atoms of CO2, which are produced by burning fossil fuels, are different from those that are “naturally” present in the atmosphere.
Furthermore, it has always been the case that an increased concentration of CO2 in the atmosphere was a consequence of the rise in temperature and not the cause, as it is today. Today it is getting warmer because more CO2 is being emitted. Back then, more CO2 was released because it was getting hotter. It got hotter because certain natural events affected the climate.