Global warming refers to the average environmental or surface temperature on the planet, which scientists say it has alarmingly increased since 1950 until the present day due to greenhouse effect. Moreover, when it comes to global warming, you should also include climate change into discussion, because this is the most obvious result of it.
II. Global warming causes Global warming is an overall state of existence that is the cumulative effect of hundreds of environmental factors. All of these join together in both a linear and random model to show global warming as a chain of events. The primary cause of global warming is Carbon Dioxide emissions. Besides, we must count to methane.