人吃鲨鱼

波恩——鲨鱼一直被描写成食人鱼,对敢于(或愚蠢到)与它们共处一片水域的游泳者构成威胁。但这种看法其实非常脱离实际。事实上,鲨鱼非常脆弱,它们的数量因人类行为而迅速减少——迫切需要全球保护。

由美国野生动物援助组织发起的一场运动已成功导致亚洲鱼翅需求量的大幅降低。比如中国就已禁止消费鱼翅汤,这是当地官方政府晚宴和典礼上的一种传统美食——此举从去年12月到今年4月已导致鱼翅销量下降30%。在中国鱼翅贸易中心的南部城市广州,经销商报告在过去两年的时间里销售下降了82%。

敦促各国采取护鲨行动应该并非难事,因为鲨鱼一旦被杀其经济价值就大幅降低。澳大利亚海洋研究所的一项研究发现帕劳鲨鱼潜水业的价值远非鲨鱼捕捞业可比。一头经常出没于帕劳各大潜水点的礁鲨年价值约合179,000美元,终生价值约合190万美元;而同一头鲨鱼如果被杀死只值约108美元。

To continue reading, please log in or enter your email address.

Registration is quick and easy and requires only your email address. If you already have an account with us, please log in. Or subscribe now for unlimited access.

required

Log in

http://prosyn.org/4H3d3Yw/zh;
  1. Patrick Kovarik/Getty Images

    The Summit of Climate Hopes

    Presidents, prime ministers, and policymakers gather in Paris today for the One Planet Summit. But with no senior US representative attending, is the 2015 Paris climate agreement still viable?

  2. Trump greets his supporters The Washington Post/Getty Images

    Populist Plutocracy and the Future of America

    • In the first year of his presidency, Donald Trump has consistently sold out the blue-collar, socially conservative whites who brought him to power, while pursuing policies to enrich his fellow plutocrats. 

    • Sooner or later, Trump's core supporters will wake up to this fact, so it is worth asking how far he might go to keep them on his side.
  3. Agents are bidding on at the auction of Leonardo da Vinci's 'Salvator Mundi' Eduardo Munoz Alvarez/Getty Images

    The Man Who Didn’t Save the World

    A Saudi prince has been revealed to be the buyer of Leonardo da Vinci's "Salvator Mundi," for which he spent $450.3 million. Had he given the money to the poor, as the subject of the painting instructed another rich man, he could have restored eyesight to nine million people, or enabled 13 million families to grow 50% more food.

  4.  An inside view of the 'AknRobotics' Anadolu Agency/Getty Images

    Two Myths About Automation

    While many people believe that technological progress and job destruction are accelerating dramatically, there is no evidence of either trend. In reality, total factor productivity, the best summary measure of the pace of technical change, has been stagnating since 2005 in the US and across the advanced-country world.

  5. A student shows a combo pictures of three dictators, Austrian born Hitler, Castro and Stalin with Viktor Orban Attila Kisbenedek/Getty Images

    The Hungarian Government’s Failed Campaign of Lies

    The Hungarian government has released the results of its "national consultation" on what it calls the "Soros Plan" to flood the country with Muslim migrants and refugees. But no such plan exists, only a taxpayer-funded propaganda campaign to help a corrupt administration deflect attention from its failure to fulfill Hungarians’ aspirations.

  6. Project Syndicate

    DEBATE: Should the Eurozone Impose Fiscal Union?

    French President Emmanuel Macron wants European leaders to appoint a eurozone finance minister as a way to ensure the single currency's long-term viability. But would it work, and, more fundamentally, is it necessary?

  7. The Year Ahead 2018

    The world’s leading thinkers and policymakers examine what’s come apart in the past year, and anticipate what will define the year ahead.

    Order now