A changing climate of opinion?

Hola, voy a hablar brevemente sobre un artículo que salió en "the economist" el 4 de septiembre/08.

Habla principalmente sobre como todas las políticas en cuanto al calentamiento global han ido cambiando. En principio se habla sobre algo hipotético, sobre, como poder cambiar de planeta, irnos para Marte, o para Venus. Entonces, tenemos problemas uno es muy caliente, con una atmosfera muy gruesa, el otro es muy frio con una atmosfera muy delgada. En conclusión, el mejor planeta, o tal vez el mas adecuado para la vida humana es el nuestro.

Ahora bien, en este momento luego de darnos cuenta que no hay nada que se pueda hacer sino empezar a combatir el problema se están buscando diferentes alternativas como lo dice el autor: "Broadly, these ideas fall into two categories. One is to remove excess carbon dioxide from the atmosphere. The other is to compensate for the climate-warming greenhouse effect this carbon dioxide and other gases cause, by reducing the amount of sunlight reaching the ground."

Continua describiendo como hacer para poder eliminar el dióxido de carbono :

"The most plausible way to remove carbon dioxide is to increase the amount of photosynthesis going on. Photosynthesis creates plant matter out of carbon dioxide and water. But rotting plant matter returns carbon dioxide to the atmosphere. So, if the gas is to be removed permanently, that rotting has to be avoided.One widely discussed idea, which the Royal Society’s correspondents re-examine, is to fertilise the oceans with iron. The growth of plankton in the sea is always limited by something. It may be light, or a familiar nutrient such as nitrate or phosphate. In some places, though, iron is the limiting nutrient. Adding iron to such places should cause a bloom of planktonic algae, thus sucking carbon dioxide out of the atmosphere.Several preliminary experiments have shown that plankton do, indeed, bloom when iron is added. What is not clear is what happens to the carbon. For the idea to work, some of it would have to sink to the ocean floor and stay there.One reason to think this might happen is that during recent ice ages the cold, dry conditions caused a lot of iron-rich dust to blow around. Supporters of the iron-fertilisation theory believe this dust produced blooms of oceanic algae that then sank to the seabed, taking large amounts of carbon with them, which helped to reduce temperatures still further."

Si eminencias como la Royal society están tan preocupadas por este problema, porque nosotros, los que podemos empezar un cambio en nuestras prácticas no???

El link del articulo es : http://www.economist.com/science/displaystory.cfm?story_id=12052171