The following problem involves some simple calculations. Read and answer ALL PARTS of the questions. Partial credit will be given for making a good-faith attempt at each part, even if you do not get the correct answer. Full credit will only be given for complete answers. SHOW YOUR WORK for all calculations. You will not receive credit if you only provide a number. ------------------------------------------------------------------------------------------------------------- In 2020, the CO2 emission by the U.S. was approximately 4.58 x 109 metric tons of carbon, and the average per capita carbon emission was 13.48 metric tons of carbon. From these two numbers, estimate the U.S. population in 2020. [5 points] The world population in 2020 was approximately 7.8 billion. The 2020 global carbon emission was 34.37 x 109 metric tons of carbon. What was the global per capita emission in 2020? [5 points] Using these numbers, what fraction of the global population is the US's population? [3 points] What fraction of the global carbon emissions is the US's emission? [2 points]