Climate change and Ecosystem

Geosciences

Geoscience is the study of the Earth. It is an exciting science with many practical and interesting applications. It is the study of critical issues like energy, meteorology, mineral and water resources, oceanography, planetary science reducing natural hazards for society. Many different sciences are used to learn about the earth, however, the four basic areas of Geoscience study are geology, oceanography meteorology and astronomy. It also includes the study of the hydrosphere, atmosphere, biosphere, and lithosphere. Earth scientists will use tools from physics, chemistry, chronology, biology and mathematics to build a quantitative understanding of how the Earth system works, and how it evolved to its current state. Geoscientists use physics, biology, chemistry, mathematics and computing to understand the planet as a natural system. Topics in the field include geology, petroleum geology, oceanography, climatology, geophysics and geochemistry. Some of the Earth scientists use their knowledge of the Earth to locate and develop mineral and energy resources. Others study the impact of human activity on Earth's environment and design methods to protect the planet. Two important subfields of geology are volcanology and seismology. These sciences can help predict the perils and mitigate the effects of natural hazards like earthquakes, volcanic eruptions, tsunamis and landslides.