Why is global warming and the weather getting cold?

Causes of warming: a large number of fossil fuels emit a large number of greenhouse gases; Forests are destroyed, and the ability to absorb carbon dioxide is weakened; The internal integration of solar global warming does not mean that the temperature rises year by year, but a trend, the annual average temperature rises. It is precisely because of global warming that the global weather system is disordered and extreme weather occurs frequently, and the occasional cooling in winter is the evil result of global warming.