The diagram illustrates the process of the greenhouse ...
I like the way in which you presented this intro. You started introducing the diagram with a simple sentence showing a process of greenhouse. Likewise, you created an overview with a periodic sentence to show general discussion.
Basically, energy from the sun will be released to the earth's ...
Well, I think that you succeeded to present well-prepared sentences. Initially, this paragraph starts to explain the sun as the main source of energy transferring heat to the earth. Then, it is followed by some sentences describing how the greenhouse effect is created. However, I suggest having a bit change for this
Not all this energy is reflected off the atmosphere
which should be Not all is this energy reflected of the atmosphere. Here, you are to use an inverted sentence.
Moving to a more detailed analysis from the picture reveals ...
Good. What has been shown here is some detailed information dealing with the process of carbon dioxide, from how human activities affect the environmental damage to which areas of the earth are reached down to amounts of toxic gases.