This book features a selection of works presented in the 3rd International Conference on BioGeoSciences in a unified framework. It focuses on the physical and mathematical modelling of natural processes and environments at different spatial and temporal scales. This interdisciplinary book presents a comprehensive collection of case studies grouped according to the planetary ''spheres'': lithosphere, hydrosphere, atmosphere, magnetosphere and biosphere. It serves as a valuable resource for scientists engaged in natural and exact sciences.