Assessment of Carbon Footprint

Choose 2 of the 4 online carbon calculators listed below and calculate your personal carbon footprint on Earth. Note that first two listed are good for both US and international locations.
http://footprint.stanford.edu/index.html (Links to an external site.)Links to an external site.
http://www.carbonfootprint.com/calculator.aspx (Links to an external site.)Links to an external site.
http://coolclimate.berkeley.edu/calculator (Links to an external site.)Links to an external site.
https://www3.epa.gov/carbon-footprint-calculator/ (Links to an external site.)Links to an external site.    
Then:
(1) Download/save (print screen and save as pdf or image file) your results and upload these results to Canvas, and
(2) Write a 1-page (typed, single spaced ~1-page, 12-pt Ariel font, 1 inch margins) paper in which you thoughtfully and analytically describe [in paragraph form, not in a list!], the following:

1. what calculators you used,
2. how the carbon footprints from these two calculators were calculated,
3. the values of your carbon footprint from each calculator (make sure you convert these so they are in the same unit),
4. any differences in the output of the two calculators and address what might account for differences,
5. your thoughts of what the calculators are NOT taking into account in the calculations,
6. what the primary contributors to your carbon imprint are, and
7. specific ways in which you could reduce your carbon footprint.

Full credit will be given if all the criteria are met in a thorough, well-explained 1-page essay and you have also submitted the results images.