„Portfolioansatz“ beim Klimawandel

Die Welt hat bisher weitgehend erfolglos versucht, im Rahmen des Kyotoprotokolls die CO2-Emissionen zu senken. Die enormen Anstrengungen, die es gekostet hat, das Protokoll in Kraft zu setzen, zeigen nichtsdestotrotz, wie viel Arbeit erforderlich sein wird, um das nächste Vertragswerk, das im Dezember 2009 in Kopenhagen verabschiedet werden soll, herbeizuführen. Seine Befürworter werden auf kompromisslose und weit reichende Grundsätze drängen, doch wird es weiter starken Widerstand von über ihre wirtschaftliche Dynamik besorgten Ländern geben.

Die neuen Verhandlungen werden gegenüber den früheren Bemühungen einen Vorteil haben, denn den Regierungen ist inzwischen die Notwendigkeit eines Portfolios aus Anpassungs-, Abfederungs- und Forschungsmaßnahmen bewusst. Neue Untersuchungen, die meine Kollegen und ich für das Copenhagen Consensus Center in Dänemark durchgeführt haben, befassen sich mit der Effektivität unterschiedlicher Reaktionen auf diese globale Herausforderung, bestätigen jedoch aus verschiedenen Gründen nachhaltig den Portfolioansatz.

Zunächst einmal wissen wir inzwischen, dass wir uns werden anpassen müssen, denn die Temperaturen werden bis ins Jahr 2100 um weitere 0,6° C steigen, selbst wenn wir schon morgen auf sämtliche Klimagase verzichten. Wir wissen außerdem, dass sich die Auswirkungen des Klimawandels global ungleichmäßig bemerkbar machen werden.

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/kSGn3pr/de;
  1. Chris J Ratcliffe/Getty Images

    The Brexit Surrender

    European Union leaders meeting in Brussels have given the go-ahead to talks with Britain on post-Brexit trade relations. But, as European Council President Donald Tusk has said, the most difficult challenge – forging a workable deal that secures broad political support on both sides – still lies ahead.

  2. The Great US Tax Debate

    ROBERT J. BARRO vs. JASON FURMAN & LAWRENCE H. SUMMERS on the impact of the GOP tax  overhaul.


    • Congressional Republicans are finalizing a tax-reform package that will reshape the business environment by lowering the corporate-tax rate and overhauling deductions. 

    • But will the plan's far-reaching changes provide the boost to investment and growth that its backers promise?


    ROBERT J. BARRO | How US Corporate Tax Reform Will Boost Growth

    JASON FURMAN & LAWRENCE H. SUMMERS | Robert Barro's Tax Reform Advocacy: A Response

  3. Murdoch's Last Stand?

    Rupert Murdoch’s sale of 21st Century Fox’s entertainment assets to Disney for $66 billion may mark the end of the media mogul’s career, which will long be remembered for its corrosive effect on democratic discourse on both sides of the Atlantic. 

    From enabling the rise of Donald Trump to hacking the telephone of a murdered British schoolgirl, Murdoch’s media empire has staked its success on stoking populist rage.

  4. Bank of England Leon Neal/Getty Images

    The Dangerous Delusion of Price Stability

    Since the hyperinflation of the 1970s, which central banks were right to combat by whatever means necessary, maintaining positive but low inflation has become a monetary-policy obsession. But, because the world economy has changed dramatically since then, central bankers have started to miss the monetary-policy forest for the trees.

  5. Harvard’s Jeffrey Frankel Measures the GOP’s Tax Plan

    Jeffrey Frankel, a professor at Harvard University’s Kennedy School of Government and a former member of President Bill Clinton’s Council of Economic Advisers, outlines the five criteria he uses to judge the efficacy of tax reform efforts. And in his view, the US Republicans’ most recent offering fails miserably.

  6. A box containing viles of human embryonic Stem Cell cultures Sandy Huffaker/Getty Images

    The Holy Grail of Genetic Engineering

    CRISPR-Cas – a gene-editing technique that is far more precise and efficient than any that has come before it – is poised to change the world. But ensuring that those changes are positive – helping to fight tumors and mosquito-borne illnesses, for example – will require scientists to apply the utmost caution.

  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