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Klaus Töpfer

Klaus Töpfer

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Klaus Töpfer, former Executive Director at the United Nations Environment Programme, former Under-Secretary-General of the United Nations, and a former German environment minister, is Executive Director at the Institute for Advanced Sustainability Studies in Potsdam and Council Chair at Agora Energiewende.

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  1. The Solar Price Revolution
    Solar panel parking garage JN Stuart/Flickr

    The Solar Price Revolution

    Apr 3, 2015 Klaus Töpfer highlights the potential of falling renewable-energy costs to transform production and consumption.

  1. johnson159_Bill O'LearyThe Washington Post via Getty Images_congress ukraine Bill O'Leary/The Washington Post via Getty Images
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    Only the US Congress Can Stop Ukraine from Winning

    Simon Johnson explains why Russia’s best hope now lies with House Republicans’ nonsensical position on the US debt ceiling.
  2. emmott42_TORU YAMANAKAAFP via Getty Image_japannavy Toru Yamanaka/AFP via Getty Images
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    What Japanese Deterrence Would Look Like

    Bill Emmott

    In new strategy documents, Japan’s government has broken new ground with a public commitment to build up the country’s counterstrike and rapid mobilization capabilities. Though executing this task will not be easy, it has become essential to peace in the region.

     explains what it will take to discourage aggression by North Korea, Russia, and especially China.
  3. duran8_ Getty ImagesGetty Images_argentina brazil union Getty Images/Getty Images
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    Getting to Monetary Integration in Latin America

    Camila Villard Duran explains why the vision of a regional unit of account, advanced by Brazil and Argentina, is achievable.
  4. subramanian35_erhui1979Getty Images_speechbubbles erhui1979/Getty Images
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    The Age of Verbiage

    Arvind Subramanian blames today’s nonstop inundation of expert opinion for undermining the quality of public discourse.
  5. haldar17_ FABRICE COFFRINIAFP via Getty Images_davos FABRICE COFFRINI/AFP via Getty Images
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    Davos Man Has a People Problem

    Antara Haldar suspects that the socially “disembedded” economic logic of globalization has gone as far as it can go.
  6. buiter44_ SAUL LOEBAFP via Getty Images_treasury SAUL LOEB/AFP via Getty Images
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    Eliminate the Debt Ceiling

    Willem H. Buiter thinks the US Constitution and common sense argue for a de facto abolition of the cap.
  7. ito23_KAZUHIRO NOGIAFP via Getty Images_japanmilitarysoldiers Kazuhiro Nogi/AFP via Getty Images
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    Japan’s Fiscal Dilemma

    Takatoshi Ito explains why the country’s deficit-financed spending spree endangers its national security.
  8. rogoff233_ Arne Dedertpicture alliance via Getty Images_germanystockmarket Arne Dedert/picture alliance via Getty Images
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    Too Soon for Global Optimism

    Kenneth Rogoff

    It is hard to reconcile the jubilant mood of many business leaders with the uncertainty caused by the war in Ukraine. While there are some positive signs of economic recovery, a sudden escalation could severely destabilize the global economy, cause a stock market crash, and accelerate deglobalization.

     warns that the Ukraine war and economic fragmentation are still jeopardizing world growth prospects.
  9. pisaniferry141_Sean GallupGetty Images)_macronscholz Sean Gallup/Getty Images
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    Why Europe’s Franco-German Engine Is Stalling

    Jean Pisani-Ferry cautions that the two countries' differences are so substantial that a hasty compromise will not suffice.

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