Global Solar Energy availability model and use in relationship to Ecological Human imprint: Economic Sustainability Impact and Assessment

Abstract

The present study is to assess the solar-energy extraction from the global Earth land, the continuation demands and the availability use in relation to human population growth in the world through the modeling of different scenarios. For the last few years, global energy becomes the most important commodity for the continuation the life on this Earth. This is due to the decreasing the non-renewable resources such as oil. According to our model, the human population growth in the world will be between 9.5 to 11.00 billion people living on this earth by year 2050 at the current trend of human population growth rate, and we may be facing with shortening of availability of energy. It is important to stress that the energy should be replenished through non-tradition energy supply, but we have to concentrate on the renewable energy, which we can develop to the extent of harvesting this energy in efficient ways. An example for the needs of energy from the land is to calculate how much the Earth can be supporting the human beings. For this regard, if each human being is required to live daily is in need for 2000 calories/per day on an average from the food. This means that the global Earth size has to produce about 15000 billion calories/day and 5475000 billion calories per year as the current estimate of human population of the earth (i.e. 7.5 billion people in year 2017). The question is the Earth can produce these calories to support 7.5 billion people, and we need more calories when the human population grows to be more than 9.5 billion people in the year 2050 in this Earth. This is only for the food that we are consuming and what about another required energy necessity for our continuation of life for production of other commodities that we are in need such as energy for fulling our cars, trucks and other factories. Therefore, solar engineering harvesting from the Earth should be important, and we have to think how we accomplish it. Additionally, we need to sustain our environment by conserving our water resources, and keeping our global climate https://doi.org/10.24084/repqj17.363 environmentally in best condition to sustain the land economic and social standards. Further, in this paper, we are discussing the impacts of changing different parameters that affect global energy in this Earth, and what are the useful lessons that we can learn from it. Furthermore, we assess the availability of solar- energy and how to harvest and economic aspects of it. This will lead to sustainability of non-renewable resources such as oil.