Fossil fuels include coal, natural gas, oil and phyllite gasoline. They were formed by the decay of prehistoric animals and plants over millions of years. Burning fossil fuels will release carbon dioxide, which is the most greenhouse gas caused by human activities.

Scientists calculated the safety of absorbing carbon dioxide from the atmosphere to avoid climate change. If the emissions exceed the safety threshold, the climate will change dramatically, making the ecosystem unable to adapt, and the earth will move towards an irreversible and uncontrollable situation.

The highest safe threshold for global temperature rise is 1 Celsius. If we continue to burn fossils at the current rate, we will reach this critical point in forty years.

The carbon dioxide produced by industry is four times that of existing oil, coal and natural gas. In other words, if we don't want dangerous climate change on the earth, at least three quarters of the discovered oil, coal and natural gas can't be used as fuel.

This means that we must immediately reduce carbon dioxide emissions, and begin to gradually stop using fossil fuels, and immediately invest in the development of renewable energy. Greenpeace called it "carbon dioxide logic".

Oil companies now have enough oil to cause drastic climate change. If they continue to use these fuels, it will have a disastrous impact on the climate. They must immediately start looking to the future and develop clean and sustainable energy to replace investment and fossil burning. If they continue the previous business model, millions of lives will be lost and our economy and ecology will collapse.

The harm caused by burning fossil fuels to the environment is a serious problem in the world today. As a result, the ecological environment is destroyed and the lives of people and animals are threatened. In particular, the environmental harm caused by direct combustion of coal is even more shocking. During the combustion of fossil fuels, sulfur dioxide, carbon monoxide, soot, radioactive deposits, nitrogen oxides, carbon dioxide and so on will be released. These substances will directly harm people and animals, leading to cancer, radiation damage to organisms, acid rain and greenhouse effect. In the early stage of industrialization, developed countries paid a heavy price for burning a lot of coal. A typical example of the disaster is: in 1950s and 1960s, London, England, was called the foggy city because it burned a lot of fossil fuels such as coal. 1952 a smog incident, the death toll reached 4000, 1962, the death toll reached 750.