Global warming is an immense environmental issue. Global warming has been an issue since the beginning of mankind. There are plenty of causes and effects to global warming. However, the main cause of global warming is called the greenhouse effect. The two major effects of global warming are the increase of temperature on the earth and the rise of sea level.

The greenhouse effect is the primary cause of global warming on the earth. It is the reflection of heat back to earth because of the high concentration of gases. One of the most hurtful gases to the atmosphere is carbon dioxide. The emission of carbon dioxide into the environment is mainly from the burning of fossil fuels.