What are the main reasons for the warming weather?

The reason is: 1. In recent years, the population explosion is one of the main factors leading to global warming. At the same time, it also seriously destroys the balance between natural ecological environment. With such a huge population, the annual carbon dioxide emitted by itself will be an amazing number, and the result will directly lead to the continuous increase of carbon dioxide content in the atmosphere, thus directly affecting the climate change on the earth's surface. 2. atmospheric environmental pollution factors at present, the increasingly serious environmental pollution has constituted a major global problem and is also one of the main factors leading to global warming. Now, the research on global climate change has clearly pointed out that the temperature of the earth's surface has started to rise since the end of last century.