不,你做不到

哥本哈根——来自194个国家的数千名官员刚刚齐聚墨西哥坎昆,召开新一轮全球气候会议。 很多个人对气候外交的进展状况深感不满,想要凭借一己之力做些事情。

几年来,从阿尔·戈尔到莱昂纳多·迪卡普里奥的气候活动家一直宣称像开经济型轿车和使用节能灯泡这样的个人行为在解决全球变暖问题的过程中能起到至关重要的作用。 联合国气候小组和国际能源机构都赞同这种观点,坚持提出高能效可以降低能耗30%之多——提高能效也因此成为控制气候变化的一种有效途径。 但事实果真如此吗?

下面是需要思考的问题。 20世纪70年代,普通美国人每年用于供暖、空调和家庭用电的能耗约为每年7000万英国热量单位。 自那以后,我们毫无疑问已经在能效方面取得了长足的进步。 正如《华盛顿邮报》不久前报导的那样,现在洗碗机的能耗比20年前降低了45%,冰箱则降低51%。 那么美国人的家庭能耗状况究竟如何? 从人均角度看,普通美国人的能耗量大约与40年前持平: 即7000万英国热量单位。

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/Ta43A9G/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