Groundwater and Water Management

Abstract

The advent of water on the Earth’s crust is not well understood. In 2009, some scientists of UK have suggested that meteors, which bombarded the Earth approximately 4 billion years ago, delivered 10 billion tonnes each of CO₂ and water vapour to the Earth’s atmosphere and the Earth held them in its atmosphere by virtue of its magnetic field. Then when the temperature decreased to less than 100 °C, part of the hot vapours became water and dropped on to the surface. At present the total volume of water (including the icecaps and glaciers) below the surface of the earth, on its surface and over it (in the form of vapour) adds up to 1.35 × 10¹⁸ kl and the scientists doubt that the origin of so much water might not be so simple. According to them other factors such as volcanic eruptions bringing forth the hydrates from within; water-containing comets, asteroids and meteorites, primordial organisms and plants could have contributed to the formation of water (Chatterjee 2013).