Salvar un árbol… ¿o quemarlo?

PRAGA – A todos nos enseñan que hay que reciclar papel para salvar árboles. En nuestras casillas de e-mail, recibimos infinidad de veces esta advertencia: “Piense en el medio ambiente antes de imprimir este mensaje”. De hecho, el movimiento ecologista nació con un llamado a la preservación de los bosques.

Pero ahora, en nombre de salvar al planeta del cambio climático, los ambientalistas han lanzado una campaña global para la reducción del uso de combustibles fósiles, que supone la tala y quema a gran escala de bosques y matorrales. No pasaría de ser una simple ironía, si no fuera por los costos fenomenales que este plan traería aparejados, entre ellos una probable destrucción de biodiversidad, un aumento del uso de agua y una reducción de la producción global de alimentos. Y encima, podría implicar un aumento de las emisiones globales de CO2.

La mayoría de la gente, cuando piensa en fuentes renovables de energía, imagina paneles solares y turbinas eólicas. Sin embargo, el uso de energía solar y eólica en todo el mundo constituye solamente una pequeña parte del total de las fuentes renovables: en 2010, supuso menos del 7% del total. La energía hidráulica es una fuente mucho mayor, aporta el 17% del total. Pero la más importante, y con diferencia, es la biomasa, el combustible más antiguo de la humanidad, que en la actualidad comprende el 76% de las fuentes renovables de energía y el 10% de la energía total. Cerca de un 60% de la biomasa se compone de leña, ramitas y estiércol, elementos usados por casi tres mil millones de personas que no tienen acceso a combustibles modernos. El resultado: niveles terribles de contaminación del aire y millones de muertes.

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/n7KYvZ3/es;
  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