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Energy as one of the most important factors of production, today has a great contribution to the economic growth and development of countries and has played the greatest role in the development of recent human civilization. This role, from transportation to food production and the provision of medical and health services, is becoming more prominent day by day. In order to continue the supply of energy in order to continue to use it, a lot of investment must be made. That is why energy security has been so much the focus of energy policymakers around the world. In this book, we first address the issue of defining and examining the importance of energy security then we talk about fossil fuels. In the following, we will discuss the effects of fossil fuels on the Earth's climate and biosphere. The issue of international agreements, including the Paris Agreement, will also be considered, as well as providing solutions to fossil fuel damage by introducing renewable energy sources, which will be one of the chapters of this book. Finally, we will examine the disadvantages and disadvantages of renewable energy to realize that these energies are not perfect in themselves! Instead of fearing, or sitting and calculating, that there are a few years left until the end of the life of oil reserves, the world needs a policy that thinks about the available alternatives. Much more and better alternatives to the fossil fuels that have driven the world and industry for years. Renewable energy sources are another proposition facing human societies. A way to overcome the energy crisis and the time bomb that seems to be tuned to announce the end of energy at any moment. In fact, we should listen to the proposal of the Saudi Minister of Energy in the 1970s, who said: "The Stone Age did not end because the stone ran out. The age of oil must end much sooner than the end of oil."

There has been talk for years about the depletion of energy resources in the world. Interestingly, even in 1914, this issue was discussed and one of the American newspapers wrote that the world's oil reserves had been depleted for a maximum of ten years; Later in 1939, the US Department of the Interior announced that there were only 13 years left to run out of oil reserves. Over the past decade, advances in technology have led to more oil being extracted from oil fields, while high oil prices have made it more cost-effective for companies to search for harder-to-reach reserves. While there is still enough oil in known areas, forecasts show that the depletion of global reserves has led to more oil being discovered. Today, new and renewable energy due to its cleanliness and compatibility with the environment, is of special interest in developed countries, and with a comprehensive and long-term planning, we must pay more attention to the positive functions of the use of these energies. Today, experts believe that the most important consequence of continuing to use fossil fuels is disease and environmental problems, and that the use of clean energy can shape a better future for the people of the world, as well as prevent further energy wastage. It is on the rise and also due to the benefits of using clean energy such as solar energy, the industrial and governmental sectors should be the pioneers in using this energy. New energies are expanding rapidly around the world. Cleanliness and cheapness can be considered as the two main indicators of new energy production, as these energies have been able to fill the gaps in fossil fuels in many places due to their high productivity. Energy experts believe that renewable energy should replace conventional energy sources such as oil and gas in the 21st century to reduce the wasteful use of hydrocarbon products and that future energy use depends on a structure in which carbon-free energy sources such as solar energy. Or wind to be used. A way to overcome the energy crisis and ...