Juan G. R. The excessive global population growth threatens its sustainability.
Water and Irrigation. Vol 2, No. 1:7-8, 2011, Spain.
The steady increase in world population, low birth control by the non developed countries, excessive pollution of the environment, inadequate protection of the marine environment, the systematic neglect of agriculture in many countries, the high demand for food, inadequate water management, accelerated loss of species of plants, animals and fish, the effects of climate change, losses of millions of hectares from deforestation, erosion and desertification threaten the sustainability of humanity and show that requires more control of the UN to ensure more efficient management of the problem.
The population of planet Earth reaches 7000 million inhabitants at the end of 2011, only 11 years it has grown at 929 million people, if we take into consideration that in 2000 the world population was 6.071 billion, to the current growth pace in 2050 the world’s population may exceed 10 billion people. The growth rate in the year 2010 for developed countries and China were less than 0.5% which is considered acceptable, however non developed countries had a higher growth rate to 1.5%, which indicates that in non- developed the population is growing three times that in developed countries which is considered unacceptable and results in the birth control little threat to non-sustainability of the global population on planet earth.
The future increase in world population over 40% in just 39 years implies a higher consumption of food, supplies, materials, energy, water, supplies of all kinds and so on. This indicates that corresponds to the UN and all countries concerned and involved, to take the necessary measures for birth control, ensuring social welfare and sustainability of humanity.
Right now the world’s food production is enough to feed the current population, despite the unequal distribution of food, high prices for the sale of food and inadequate infrastructure in the primary sector of many non developed countries cause that in the planet earth the number of hungry people over 1000 million people. Corresponds to the agricultural sector and food industry to ensure the production of food needed to cope with future growth of humanity, but now the agricultural sector in many countries suffer a systematic deterioration as a consequence of the low prices of agricultural products make it unprofitable to many farms, as well as by the low standard of living of the sector, which has largely driven the migration of people from countryside to city.
The increase of the world’s population demand: a higher consumption of water quantity and quality, an increase of water stored, further exploitation of sources of surface and groundwater supply, an increase of irrigated areas, because the water is a strategic element that stabilizes and increases the production of food, but now the growth of irrigated areas is lower than global population growth. It is also necessary that international organizations and different countries to ensure food production in the primary sector and food industry for the sustainability of the global population.
In another sense it is disturbing: the high deforestation to the planet earth that is more than 4 million hectares / year, annual pollution by the dumping of millions of m3 of toxic products, the millions of garbage tons that are generated each year, million hectares per year are lost due to erosion and desertification, loss systematic many species of plants, animals and fish, inadequate international protection of marine fisheries and the marine environment, the effects caused by the change climate, human action on the surrounding environment. It requires that international organizations and different countries to ensure better management of terrestrial and marine environment.