A recent study by the University of Lisbon’s Center for Oceanography reports that acidification from CO2 emissions could cause the global shark population to decline by as much as 40% by 2100. Add to that the more than 73 million individual sharks that are already lost annually, and the situation is clearly unsustainable.
比方说气候变化。里斯本中心大学最近一项海洋学研究表明二氧化碳排放所导致的酸化可能导致到2100年全球鲨鱼数量骤降40%。再加上鲨鱼数量每年已经减少7，300万头，由此产生的状况显然不可持续。