La gestión de la Tierra

En algún momento de los veinte próximos años, la relación entre los seres humanos y el mundo natural va a cambiar, profundamente y para siempre. No ocurrirá de repente, sino que los actuales descubrimientos científicos harán inevitable el cambio. Nos guste o no, estemos o no preparados, dichos descubrimientos científicos nos están haciendo internarnos por la vía de la gestión del ecosistema mundial, en lugar de ser simples participantes en él.

Me gusta pensar sobre esa revolución que se avecina desde el punto de vista histórico. Durante los más de tres millones y medio de años en que seres que podríamos llamar "humanos" caminaron por la Tierra formaron parte sin ambigüedad alguna del sistema natural. Las leyes de hierro de la evolución regían su supervivencia y los que no podían competir morían temprano y pronto eran olvidados. Nuestras únicas defensas contra un mundo hostil fueron las primitivas herramientas de piedra y el fuego... un tipo de protección mínima, en el mejor de los casos.

Después, hace unos 10.000 años, sucedió algo extraordinario. En algún lugar de las montañas Taurus, en lo que hoy es Turquía, un grupo de personas, probablemente mujeres, empezaron a desarrollar un nuevo conjunto de tecnologías que cambiarían la relación de los seres humanos con su medio ambiente. Llamamos "agricultura" a esas tecnologías, que brindaron por primera vez a los seres humanos la capacidad para moverse fuera de las leyes de la selección natural. Nuestros antepasados dejaron de tener que contentarse con los alimentos que la naturaleza ofrecía... podían empezar a cultivar los suyos y así superar con mucho el escaso suministro de la naturaleza.

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