What is the IPAT formula, and what do each of its variables mean? Do you think it is realistic to think that Americans could get their environmental impact close to that of a person living in an undeveloped country by using renewable resources and environmentally friendly technology? Why, or why not? Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations. Cunningham, W. P., & Cunningham, M. A. (2011). Principles of environmental science inquiry and applications (6th ed.). New York, NY: McGraw-Hill. .