Question

How does global warming occur

Answer 1

when population and pollution increased.

Answer 2

Global warming is a serious issue and is not a single issue but a number of environmental issues. Global warming is a rise in the surface temperature of the earth that has changed various life forms on the earth. The issues that cause global warming are divided into two categories include "natural" and "human influences" of global warming

Deforestation is a human influence because human have been cutting down trees to produce papers, wood, build houses or more.

Besides, human also release carbon dioxide when breathe. Therefore the amounts of millions of people breath have release carbon dioxide to the atmosphere. If human continue deforestation, human breathing that release carbon dioxide will stay at the atmosphere.