Sand mining: The High Volume – Low Value Paradox
Water does not exist in isolation. It is an integral part of any ecosystem and as such, every major change to this ecosystem has hydrological impacts which then lead to sociological, economic and other environmental consequences. The world’s freshwater resources are under threat from a wide variety of factors. Many of them such as over-abstraction of water from rivers and aquifers, pollution from point and non-point sources, changing patterns of precipitation are popularly known, debated and discussed widely.