Thursday, December 4, 2008

Denise Milani What Happened To Her

Petroleum, a quick overview.

Remontémonos a la época en que el hombre era un cazador recolector. Fue creciendo la población humana y se hizo imperiosa la necesidad de domesticar plantas y animales para aprovecharlos, ya que sin esta medida el alimento desaparecería rápidamente.
Crecimos en número, nos asentamos; y ahora seguimos creciendo y estamos abarcando las áreas destinadas a la producción agrícola.
Actualmente, ¿cuál es la actividad productiva humana mas nociva para el entorno?, ¿la minería?, ¿la pesca? ¿la industria? ¿la agricultura?.
La respuesta es la agricultura. ¿Cuántas tons of insecticides, herbicides, fertilizers used in this activity and how harmful they are to the ground?.
change needed in agricultural techniques to impact less on the earth.
No need reinventing the wheel in agriculture. Using techniques of composting shed would prevent many amounts of fertilizer, also by diversifying crops to avoid pest attack plantation, to use the platforms (or terraces) less water is used because this system retains moisture, prevents erosion, generates microclimates also reduces the use of fertilizandes because this system retains nutrients.
Every culture, in different geographical areas the world and exploded domesticated edible plants, having consumed more than 7,000 plant species.
food production is currently based mainly on farming: potato, rice, corn, wheat and soybeans, food covering 70% of human caloric demand. According to the United Nations Organization, the heavy reliance on so little food makes us more vulnerable to shocks in stock, governed by supply and demand, being exploited by speculators, as happened in 2008.
When left to grow quinoa (Chenopodium quinoa ), amaranth (Amaranthus sp .), In Latin America, the phon (Digitaria sp .) West Africa, and other highly nutritional crop native in other parts of the globe, they ended up confined to rural areas.
taxes eating patterns for 50 years we have become dependent on subsidized food by the great powers.
At stop growing native food plants are lost to planting techniques and improve them, and therefore, biodiversity is lost in cultivars. The most traded vegetable varieties have multiple achieved after decades of testing and research, this has not happened with the native crops, therefore they can not compete with corn, wheat, potatoes and soybeans.
To face a potential crisis food crops is necessary to diversify, to not depend on speculative prices imposed by the international market.
Do not take us by surprise by the near certainty of a global food crisis, now that the climate is changing.

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