In addition to human factors, what are the other causes of climate change?
The causes of climate change may be natural internal processes, external forcing, or man-made changes in the main components of the atmosphere and the use of land resources. Changes in solar radiation, changes in the Earth's orbit, magma activity, changes in atmospheric and deep-sea circulation, etc. are the natural causes of global climate change. Human activities, especially human activities since the Industrial Revolution, are an important cause of climate change currently characterized by global warming.
Causes of climate change
1. General environmental conditions. As we all know, our earth is slowly warming at this stage, and some experts believe that this warming is the basic law of the earth's self-regulation. On a long time scale of tens of thousands or even hundreds of millions of years, climate changes The corresponding laws, especially the corresponding fluctuations in temperature, are normal. And our earth is currently in a "warming period".
2. Human activities cause climate change. This statement is generally recognized by people, and it also has great political and cultural implications. Experts analyzed ancient gases obtained from glaciers and found that the concentration of carbon dioxide in our air now is nearly 60 times higher than in ancient times. Carbon dioxide happens to be the core member of greenhouse gases. Therefore, our human activities have produced a large amount of greenhouse gases, which is a major cause of climate change.
Climate change refers to statistically significant changes in climate means and climate deviations, such as changes in average temperature, average annual precipitation, maximum temperature, minimum temperature, and extreme weather events. change. Global warming, which is often said, is one of the important manifestations of climate change.
In the long history of earth movement, the climate has always been changing. In the final analysis, it can be summarized into two categories: natural climate fluctuations and human factors.
The impact of human activities on climate: The important influencing factors of world climate change in the past century, ranked in order of importance, are: carbon dioxide concentration changes, urbanization, sea temperature changes, and forest destruction.