La vida en la tierra, así como la conocemos se da gracias a un frágil equilibrio. Cualquier acción, por pequeña o insignificante que creamos que sea, afecta de alguna forma este frágil equilibrio. Así mismo podemos reducir las acciones negativas con otras, pequeñas en algunos casos, que disminuyan el impacto.
50ºC es la diferencia de temperatura que hay entre la región Polar y la Ecuatorial. Tratemos de mantenerla.


El ocaso del Coral Caribeño

El aumento de la temperatura del mar caribeño y los sedimentos amenazan los vitales arrecifes coralinos, por lo que nuestra generación podría ser la última en observar este recurso marino.

Los arrecifes de coral son uno de los ecosistemas más ricos en biodiversidad y productivos sobre la tierra, el que se compara con los bosques tropicales.

El cambio climático afecta de forma significativa estos ambientes, ya que se elevan las temperaturas de mar provocando el blanquecimiento de los arrecifes.

El Blanquecimiento de los arrecifes es provocado cuando los pólipos del coral, estresados por el calor o por los rayos UV expulsan el alga simbióta que vive en sus tejidos.
Si los arrecifes desaparecen los peces no vienen a comer ni a reproducirse. lo que provocaría la muerte de los peces asociados a estos ambientes. Esto ocurriría en algunas áreas marinas en Puerto Rico a raíz de los eventos del calentamiento de las aguas reportados en los años 2005 y 2006.

La temperatura máxima para los arrecifes es de 28.5° C, en el 2005 esta temperatura alcanzo los 31.8° C durante 15 días, en el 2006 y el 2007 se mantiene en los 29° C.

Otro dato interesante es el impacto del polvo del desierto del Sahara. Las nubes de material particulado (polvo) que cruza el Atlántico, arrastran esporas que se cree podrían estar causando la mortalidad de los arrecifes. Y con el Cambio Climático el pronósticos de los modelos matemáticos, es que la desertificación de esta zona de África aumentará.

Fuente: El Mercurio

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The Parlay System is one of the most famous of betting systems that are commonly used in horse racing. Many have said that contrary to other sports betting systems, the Parlay System has a pyramiding effect on your profit which means your winnings are played on successive wagers.
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