2. The Origin of Global Climate Change

The primary cause of climate change is due to the utilization of fossil fuel massively by industrial and transportation sectors throughout the world, as it is leading to the excessive accretion of carbon dioxide in the air. This study examines the comprehensive environmental International dataset for the vegetation of global modeling (IDVGM) simulation by incorporating data from various authoritative sources such as Department of Environmental Protection (DEP), Department of Energy (DOE), Intergovernmental Panel on Climate Change (IPCC), Carbon Foundation Council (CFC), Carbon Dioxide Information, and Analysis Center (CDIAC), International Energy Agency (IEA), United Nations Environmental Program (UNEP), National Oceanic and Atmospheric Administration (NOAA), National Aeronautics and Space Administration (NASA). The objective is to verify the worldwide net CO₂ emissions resulting from conventional development activities in the building and infrastructure sectors, and to compare these emissions with the global CO₂ sequestration by ocean and land vegetation between 1960 and 2029. Following this, the reports have been transformed into datasets for each 10-year period to precisely ascertain the decadal rates of emission and sequestration of total CO₂. Subsequently, the aforementioned data underwent peer analysis to ascertain the ultimate annual rate of CO₂ accumulation (Year⁻¹) in the air. The study suggested that the net CO₂ emissions throughout the world since 1960s have been increasing rapidly while in the recent year of the 400 ppm CO₂ concentration into the air is increasing due to the conventional development of building and infrastructure sector. If the current pace of annual CO₂ rise is not mitigated in a timely manner, the concentration of air CO₂ would reach a toxic level of 1200 ppm within 75 years. As a result, the entire human race will face severe respiratory problems due to the toxic level of CO₂ presence in the air for breathing and probably that would then be the turning point for humans to survive on the earth.