La libreta de calificaciones de Río

NUEVA YORK - Una de las más importantes revistas científicas del mundo, Nature, acaba de dar a conocer, a pocos días de realizarse la próxima Cumbre sobre Desarrollo Sostenible Río+20, una libreta de calificaciones sobre la implementación de los tres grandes tratados firmados en 1992 en la primera Cumbre de la Tierra de Río. Las calificaciones fueron las siguientes: Cambio climático - Reprobado, Diversidad biológica - Reprobado y Lucha contra la desertificación - Reprobado. ¿Puede todavía la humanidad evitar salir expulsada de clases?

Durante al menos una generación hemos sabido que el mundo necesita un cambio de rumbo. En lugar de alimentar la economía mundial con combustibles fósiles, tenemos que estimular un uso mucho mayor de alternativas bajas en carbono, como las energías eólica, solar y geotérmica. En lugar de cazar, pescar y talar sin tener en cuenta el impacto sobre otras especies, debemos adaptar el ritmo de nuestra producción agrícola, pesquera y forestal a las capacidades del medio ambiente. En lugar de dejar a los más vulnerables del mundo sin acceso a planificación familiar, educación y atención básica de salud, tenemos que acabar con la pobreza extrema y reducir las altas tasas de fecundidad que persisten en las zonas más pobres del planeta.

En resumen, tenemos que reconocer que con siete mil millones de personas hoy en día, y nueve mil millones a mediados de siglo, todas interconectadas en una economía global que hace un uso intensivo de la energía y las altas tecnologías, nuestra capacidad colectiva para destruir los sistemas del planeta que dan sustento a la vida ha alcanzado niveles sin precedentes. Sin embargo, por lo general las consecuencias de nuestras acciones individuales están tan lejos de nuestra conciencia diaria que podemos ir derecho al precipicio sin ni siquiera darnos cuenta.

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