Por Bjørn Lomborg

PRAGA – Este verano las condiciones climáticas a lo largo y ancho de todo el mundo han alimentado, de forma amplia, el debate sobre el calentamiento global. Las sequías y las olas de calor son un presagio de nuestro futuro, las reducciones de carbono son ahora más necesarias que nunca, y sin embargo, aún no se han promulgado políticas significativas.

No obstante, más allá de este muy trillado campo de batalla, sucedió algo sorprendente: las emisiones de dióxido de carbono en los Estados Unidos cayeron a su nivel más bajo en 20 años. Si se realiza una estimación sobre la base de datos recolectados por la Agencia de Información de Energía de EE.UU. (EIA) (US Energy Information Agency (EIA)) durante los primeros cinco meses del año 2012, este año se espera que las emisiones de CO2 se reduzcan en más de 800 millones de toneladas, es decir en un 14% desde el pico que alcanzaron en el año 2007.

La causa es un cambio, sin precedentes, relativo al uso de gas natural, el cual emite 45% menos de carbono por unidad de energía.  EE.UU. solía generar la mitad de su electricidad mediante el uso del carbón, y aproximadamente el 20% a través del gas. En los últimos cinco años, dichas cifras han cambiado, primero lentamente y ahora dramáticamente: en abril de este año, el porcentaje de electricidad generada mediante carbón se desplomó a tan sólo un 32%, llegando a colocarse a la par del porcentaje de electricidad generada mediante gas.

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/HKYojbm/es;
  1. Sean Gallup/Getty Images

    Angela Merkel’s Endgame?

    The collapse of coalition negotiations has left German Chancellor Angela Merkel facing a stark choice between forming a minority government or calling for a new election. But would a minority government necessarily be as bad as Germans have traditionally thought?

  2. Trump Trade speech Bill Pugliano/Getty Images .

    Preparing for the Trump Trade Wars

    In the first 11 months of his presidency, Donald Trump has failed to back up his words – or tweets – with action on a variety of fronts. But the rest of the world's governments, and particularly those in Asia and Europe, would be mistaken to assume that he won't follow through on his promised "America First" trade agenda.

  3. A GrabBike rider uses his mobile phone Bay Ismoyo/Getty Images

    The Platform Economy

    While developed countries in Europe, North America, and Asia are rapidly aging, emerging economies are predominantly youthful. Nigerian, Indonesian, and Vietnamese young people will shape global work trends at an increasingly rapid pace, bringing to bear their experience in dynamic informal markets on a tech-enabled gig economy.

  4. Trump Mario Tama/Getty Images

    Profiles in Discouragement

    One day, the United States will turn the page on Donald Trump. But, as Americans prepare to observe their Thanksgiving holiday, they should reflect that their country's culture and global standing will never recover fully from the wounds that his presidency is inflicting on them.

  5. Mugabe kisses Grace JEKESAI NJIKIZANA/AFP/Getty Images

    How Women Shape Coups

    In Zimbabwe, as in all coups, much behind-the-scenes plotting continues to take place in the aftermath of the military's overthrow of President Robert Mugabe. But who the eventual winners and losers are may depend, among other things, on the gender of the plotters.

  6. Oil barrels Ahmad Al-Rubaye/Getty Images

    The Abnormality of Oil

    At the 2017 Abu Dhabi Petroleum Exhibition and Conference, the consensus among industry executives was that oil prices will still be around $60 per barrel in November 2018. But there is evidence to suggest that the uptick in global growth and developments in Saudi Arabia will push the price as high as $80 in the meantime.

  7. Israeli soldier Menahem Kahana/Getty Images

    The Saudi Prince’s Dangerous War Games

    Saudi Arabia’s Crown Prince Mohammed bin Salman is working hard to consolidate power and establish his country as the Middle East’s only hegemon. But his efforts – which include an attempt to trigger a war between Israel and Hezbollah in Lebanon – increasingly look like the work of an immature gambler.