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Articulos antioquia

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Articulos antioquia

  1. 1. ARTICULO 1El Cambio Climático es, un cambio en el clima atribuido al aumento de losGases de Efecto Invernadero(GEI), principalmente el Dióxido de Carbono(CO2) que alteraron la composición de la atmósfera mundial y que se suma a lavariabilidad natural del Clima observada durante largos períodos de tiempocomparables.El cambio climático es una de las mayores preocupaciones de los científicos,uno de ellos es Mark Lynes que dice que con 3 grados más tendremosdesaparición de los glaciares de Groenlandia y de algunas islas bajas, que elamazona se secaría, que el ártico en verano estaría libre de hielo, y ademásmenciona que las temperaturas “Extremas” serían las normales.El término, a veces se refiere específicamente al cambio climático causado porla actividad humana, a diferencia de aquellos causados por procesos naturalesde la Tierra y el Sistema Solar. ARTICULO 2El cambio climático es definido como un cambio estable y durable en ladistribución de los patrones de clima en periodos de tiempo que van desdedécadas hasta millones de años. Pudiera ser un cambio en las condicionesclimáticas promedio o la distribución de eventos en torno a ese promedio (porejemplo más o menos eventos climáticos extremos). El cambio climático puedeestar limitado a una región específica, como puede abarcar toda la superficieterrestre.Los científicos mundiales han determinado que el aumento de la temperaturadebiera de limitarse a 2ºC para evitar daños irreversibles al planeta y losconsiguientes efectos desastrosos en la sociedad humana. Para lograr evitareste cambio irreversible y sus efectos, las emisiones de gases invernaderosdebieran de alcanzar su máximo en el 2015 y disminuir progresivamentedespués de esa fecha hasta alcanzar una disminución del 50% para el año2050. ARTICLE 3Climate change is a reality that demands novel strategies that allow us tosurpass the critical factors that put our existence in peril.The products based oncell cultures and vegetabletissues could be excellent alternatives to producebasic foods, assuring the food resource required in the future by Colombianpeople.There is more CO2 in the atmosphere, the carbon dioxide is the principal anddominant taxpayer to the current climate change and his atmosphericconcentration has increased from a value of 278 parts for million in the agepreindustrial up to 393 ppm(parts for million) at present.
  2. 2. ARTICLE 4The arcticserious one of the mas affected by the climate change.A new investigation predicts that the increase of temperatures will drive to amassive increase of the vegetable coverage in the Arctic. In an article publishedon March 31 in Nature Climate Change, the scientists reveal new models whoproject that the wooded areas in the Arctic might increase even in 50 per centduring the near decades. The investigators also show that this problem willaccelerate the global warming to a major pace of the awaited thing.The growth of the plants in the ecosystems of the Arctic has increased in thelast decades, a trend that coincides with the increase of the temperatures that itcomes to almost the double of the global rate.The scientists developed models who predict statistically the types of plants thatcan grow under certain temperatures and rainfalls. In spite of the fact that itincludes uncertainty, this type of shaped is an effective way of studying theArctic due to the fact that the hardness of the climate limits the variety of plantsthat can grow, for what this system is simpler to shape in comparison with otherregions, as the tropics. ARTICLE 5To avoid the worst impact of the climate change we need a drastic and rapidreduction of the emission of greenhouse gases. The energetic sector is themajor person in charge of the set of this emission, by this there is looked achange of energetic model in which the sources of dirty energies are replacedtotally for renewable, saving and efficiency.Colombia is especially vulnerable to the impacts of the climate change. Most ofhis population is in the high parts of the mountain chains, zones where there areforeseen problems of water shortage, and on his coasts, where the increase ofthe level of the sea can impress the human accessions and economic keyactivities for the country.The climate change forces us to conceive the development of a different waysince to reduce his risks is necessary to do deep and systemic changes thatpromote ways of life and of consumption more conscious that they happen for:the of the economy or the promotion of a development of low intensity in theconsumption of carbon and a development more resilient that implies a moreharmonic relation between the human activities and the territory.
  3. 3. BIBLIOGRAFIA:http://www.pnud.org.co/sitio.shtml?apc=--1--&s=g&m=a&cmd%5B333%5D=i-333-3af48a226e7bb0eece38255cbc94a0e8#.UV6ofaI02d4http://www.bogotahumana.gov.co/index.php/2012-01-04-20-46-15/2012-07-16-16-44-18/cambio-cimaticohttp://cambioclimaticoglobal.com/http://www.lasallista.edu.co/fxcul/media/pdf/RevistaLimpia/vol2n2/PL_V2N2_71-89-bioagricultura.pdfhttp://www.greenpeace.org/espana/es/Trabajamos-en/Frenar-el-cambio-climatico/http://www.elmundo.es/traductor/

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