Six comprehensive encyclopedias on the history of science and earth sciences have been completed, focusing on space, environment, energy, water, and natural hazards. These resources, rich with images and illustrations, are designed for researchers, students, and the general public, addressing the lack of Arabic references. The Fifth Encyclopedia, spanning 988 pages, delves into environmental and water issues, solutions to environmental problems, interactions between the atmosphere, water, and biosphere, climate change, afforestation, global warming, and the impact of rainfall, floods, and dams. It also emphasizes the integrated management and conservation of water resources.