Create a pie graph to show the overall distribution of the renewable energy categories. Assign each category a specific color and calculate the percentage or proportion that each category contributes to the whole. The pie graph will provide a visual representation of the relative sizes of the categories in mitigating human impact. (in numbers and words and 3 sentences)

Unfortunately, as a text-based AI, I am unable to create visual representations like pie graphs directly within this platform. However, I can provide you with the necessary information to create the graph yourself.

To create the pie graph, assign each renewable energy category a specific color, such as green for solar, blue for wind, yellow for hydroelectric, and so on. Calculate the percentage or proportion of each category by dividing the individual category's capacity or contribution to the total renewable energy by the sum of all renewable energy sources. Multiply the result by 100 to get the percentage.

For example, if solar energy accounts for 40% of the total renewable energy capacity, wind energy is 30%, and hydroelectric energy is 20%, your pie graph would show that solar takes up 40% of the pie, wind takes up 30%, and hydroelectric takes up 20%.

This pie graph would provide a visual representation of the relative sizes of each renewable energy category and illustrate their respective proportions in mitigating human impact.