Sand, Rarer than One Thinks: UNEP Global Environmental Alert Service (GEAS) - March 2014

Sand and gravel are mined world-wide and account for the largest volume of solid material extracted globally. Formed by erosive processes over thousands of years (John, 2009), they are now being extracted at a rate far greater than their renewal. Furthermore, the volume being extracted is having a major impact on rivers, deltas and coastal and marine ecosystems (Figure 1), results in loss of land through river or coastal erosion, lowering of the water table and decreases in the amount of sediment supply. Despite the colossal quantities of sand and gravel being used, our increasing dependence on them and the significant impact that their extraction has on the environment, this issue has been mostly ignored by policy makers and remains largely unknown by the general public.

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Source https://wedocs.unep.org/20.500.11822/8665
Last Updated January 25, 2023, 17:15 (UTC)
Created January 25, 2023, 15:17 (UTC)
GUID 5ffb79c5-9622-44c4-acda-c2de6322c2b8
Issued 2016-10-11T20:07:11Z
Language English
Modified 2022-10-19 17:55:49.855
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Theme Reports, Books and Booklets
data_type document
spatial