A recent commentary by Nature in the UK said that the current rate of sand and gravel mining has exceeded its natural recovery rate. The implication is that there has been a shortage of sand. There is a shortage of sand, and many people find it incredible, but this is an established fact. So how do you solve this problem? People from all walks of life have also opened their minds and hope to help solve this problem.
近期英国《自然》杂志发表的评论称，目前沙子和砾石的采掘速度，已经超过了其自然恢复的速度。言外之意，沙子已经出现了短缺现象。沙子居然都会短缺，很多人都觉得不可思议，但这却是既定的事实。那么该如何解决这一难题呢？各界人士也都脑洞大开，希望助力解决此事。The researchers suggest that it is necessary for UNEP and the World Trade Organization (WTO) to establish and supervise a global sand monitoring system. The scientific community should build a system that can count the amount of sand produced in the river and the amount of mining. The new system should include legal and illegal mining. This proposal is reasonable, but it takes a long time and it is difficult to implement.