Ocean Sentry
Between 1994 and 2012, global cement production—a proxy for concrete use—tripled, from 1.37 billion to 3.7 billion tons, driven largely by Asian construction, according to a 2014 report from the United Nations Environment Programme (UNEP).
Suction pumps can extract a large volume of sand in a short space of time and can also operate through the day and night and through all seasons to quickly denude an area of it's sand. Credits: Sumaira Abdulali/Wikipedia
