Kaya identity What are the main parameters that affect the global CO2 emissions from humans? At least population should affect them: the more people, the more emissions. So we could write: CO2 = k x POP where CO2 is the amount of emissions (for example, per year), POP is the global population and k is some coefficient (which will keep changing as we go further building this equation). But population is not enough. Certainly, the emissions per person (per capita) are smaller in poor countries compared with rich countries. So, the standard of living affects emissions as well. This can be measured as gross domestic product (GDP) per capita. So, we can update the equation: CO2 = k x (GDP/POP) x POP Most CO2 emissions are also related to energy. Energy intensity can be defined as energy consumption divided by the gross domestic product. Thereby, we can mark energy consumption as TOE (Ton Oil Equivalent, 1 TOE = 11 600 kWh = 42 GJ). CO2 = k x (TOE/GDP) x (GDP/POP) x POP Finally, we can define the coefficient k above as the CO2 emission per unit of energy (carbon intensity). This takes into account the fact that different countries have different energy resources, each of which could have different emission factors. CO2 = (CO2/TOE) x (TOE/GDP) x (GDP/POP) x POP This equation is called the Kaya identity (Kaya, Y., 1995. The role of CO2 removal and disposal. Energy Convers. Manag. 36, 375–380, https://doi.org/10.1016/0196-8904(95)00025-9. In short, people will want to have a certain standard of living, which is measurable by the gross domestic product per person (per capita). The energy intensity of the economics dictates how much energy is needed for the gross domestic product. The CO2 emission per energy depends on the applied technologies and resources: energy efficiency and application of renewable energy sources. The Kaya identity is of course a rough simplification of reality, but it clearly demonstrates how difficult it is to reduce CO2 emissions while the gross domestic product and the population tend to grow. Different technical means can only affect the first two parameters of the Kaya identity. In addition to absolute values, the equation can be used to estimate the rate of changes as well. For example, if the population and GDP/POP both increase 10%, then the increase should be compensated by decreasing the first two parameters.Investigate the different terms based on statistical data by the World Bank. Study the changes during 2010 - 2014 for the European Union. The links are provided below:POP:https://data.worldbank.org/indicator/SP.POP.TOTL?locations=EU GDP/POP:https://data.worldbank.org/indicator/NY.GDP.PCAP.CD?locations=EUTOE/GDP:https://data.worldbank.org/indicator/EG.USE.COMM.GD.PP.KD?locations=EUCO2/TOE:https://data.worldbank.org/indicator/EN.ATM.CO2E.EG.ZS?locations=EUWhich of the parameters has increased relatively the most?