50 billion tons: enough to build a wall 27 metres wide and 27 metres high around planet Earth. This is the volume of sand and gravel used each year, making it the second most used resource worldwide after water. Given our dependency on it, sand must be recognised as a strategic resource and its extraction and use needs to be rethought, finds a new report by the United Nations Environment Programme (UNEP).
By Emma Farge GENEVA (Reuters) - A U.N. report on Tuesday called for urgent action to avert a "sand crisis," including a ban on beach extraction as de.
Our use of sand brings us up against wall , says UNEP report miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.