Earth Science describes the planet’s features, patterns, composition, and the processes operating within and on its surface, its history, and life. Earth scientists seek to understand these features and processes and to answer practical questions using a wide array of scientific and engineering techniques ranging from field mapping, geophysical measurements, geochemical analyses, biological studies, and Earth and space-bound remote sensing.
Earth science ensures humanity's future and the environment by understanding the planet's past and present, identifying resources, forecasting hazards, slowing climate change, educating, and aiding policymakers, guided by the principle of changing civilizations (Will Durant).
