The platform, developed by the UN Environment Programme (Unep), monitors dredging of sand in the marine environment by using AIS (automatic identification systems) data from ships. Using data from 201219, Marine Sand Watch estimates the dredging industry is digging up 6bn tonnes of marine sand a year, a scale described as "alarming". The rate of extraction is growing globally, Unep said, and is approaching the natural rate of replenishment of 10bn to 16bn tonnes of sand flowing into the sea from rivers and needed to maintain coastal structure and ecosystems.
The platform has identified "hotspots" including the North Sea, south-east Asia and the US east coast as areas of concern. In many places, including parts of Asia, marine sand is being extracted well beyond the rate at which it is being replenished from rivers.
"The scale of environmental impacts of shallow sea mining activities and dredging is alarming, including biodiversity... and noise impacts on marine mammals," said Prof Pascal Peduzzi of Unep and the University of Geneva.
Denne historien er fra September 06, 2023-utgaven av The Guardian.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra September 06, 2023-utgaven av The Guardian.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
New year refresh A month-by-month guide to sorting out your finances
Rupert Jones and Hilary Osborne offer a checklist of the vital tasks you need to tackle throughout the year, from filing your tax return to making the most of your holiday cash
Lost in music How Britain's clubs are disappearing fast - and why they are worth rescuing
When the patrons of Watford's Przym nightclub celebrated New Year's Eve a year ago, they were marking the end of an era - or rather, seven eras.
Nissan shares down 15% as investors react to plan for merger
Shares in the Japanese carmaker Nissan have taken their biggest fall since August's stock market sell-off, as investors turned their attention to the company's planned tie-up with domestic rivals Honda and Mitsubishi.
Climbing out of trouble? Rise in share price suggests BA's turbulent days may be over
It's been a long and turbulent time since anyone used British Airways' old slogan \"the world's favourite airline\" with a straight face.
North-south divide flips as EU's periphery beats core economies
The European Central Bank is facing a tough balancing act in 2025, trying to navigate a reversal of fortunes in eurozone economies as the hardest-hit nations of the 2010s debt crisis outperform the traditional core.
Number of retailers on the brink of collapse up by 25%
Footfall levels up 18% on Christmas Eve compared with last year.
London-listed mining company halts operations in Mozambique
The London-listed mining company Gemfields said yesterday it had temporarily halted its ruby mining operation in Mozambique after groups \"took advantage\" of political unrest to attempt to invade and set fire to its site, resulting in two deaths.
Aid convoy reaches besieged area of Sudanese capital
An aid convoy has reached a besieged area of Khartoum for the first time since Sudan's civil war broke out in April 2023, bringing food and medicines in a country where half of the people are at risk of starvation.
Mexico The mayor who turned wasteland into a utopia
Mexico City's mayor, Clara Brugada, has never been afraid to court controversy and has taken some imaginative steps in her efforts to undo decades of economic and cultural inequality.
Crisis on cat island On Aoshima, is time finally running out for human and feline inhabitants?
The reason for Aoshima's nickname is clear before we set foot on the island.
