An informative essay contains three parts. The first part is the introduction. It is used to grab the attention of the reader and introduce the present topic. The second part is the bulk of the essay and contains all of the important facts being covered. The last part is the conclusion.
Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect.
Global warming, or climate change, is a subject that shows no sign of cooling down. Here's the lowdown on why it's happening, what's causing it, and how it might change the planet.Printer Friendly.Average temperatures have climbed 1.4 degrees Fahrenheit (0.8 degree Celsius) around the world since 1880, much of this in recent decades, according to NASA's Goddard Institute for Space Studies.  The rate of warming is increasing.