Urban pollution or the planet? | Massacritica indian food
Unfortunately we know pollution today is perhaps one of the worst disasters that hit our beloved planet. We all know that there is, and we know vaguely risks. But what I really do not know what it is, where it affects mainly, why and what is being done to fix it.
As we all know, life on Earth is governed by natural laws precise. The first, fundamental, is one for which nothing is created or destroyed, but everything changes. This is why every living being is born, grows, reproduces and dies. But the cycle of his life is not extinguished indian food by his death. His remains are always absorbed directly or indirectly from the Earth, enriching substances so that they can contribute to the formation and maintenance of new organisms. We can consider this endless cycle as a first circle of life.
We have a source of energy that the sun radiates its rays with a biomass, which in turn generates life forms contiguous, that through the different stages indian food of natural birth, growth, reproduction and death, are all interrelated to each other, to form the different food chains.
Thanks so solar energy, there is life on Earth. The radiation from the Sun have made, in fact, can the process of photosynthesis of the plant world, thanks to which it releases the oxygen we breathe and that is present in our atmosphere and without which food chains should dramatically in crisis.
It is therefore a system of life open with regard to the solar energy, but closed with regard to its substances. These must therefore always be present in the ecosystem General, and this constantly recycled, through the decomposition of its products, to return to be available. You could then sketch the idea that pollution is nothing but a form of recycling is not natural and therefore not compatible with our ecosystem. This recycling "outside the box" ends up being damaging and interfering with the natural one already present, causing serious imbalances, difficult to restore.
At first, the human intervention on the Biosphere was equal to that of every other living thing. Until such time as no longer considering the needs of other living beings and in so doing he blasted the delicate balance of the whole system, of which he is part.
Environmental pollution has accompanied human civilizations from the beginning. According to a 1983 article published in the journal Science: "Soot found on ceilings of prehistoric caves provides ample evidence of the high levels of pollution associated with inadequate ventilation of open flames." Also metal-forging indian food seems to have been a turning point in the creation of significant levels of air pollution.
More recently came the increasingly urgent need to obtain new lands needed to create ample space for crops and livestock. This has led to a work of deforestation forced that caused the first climatic changes, which over the centuries, have grown in parallel to the increase in human population.
During the industrial revolution it is then passed to a massive use of energy sources: first of all the combustion, also polluting factor. And, in this era, it developed another phenomenon invasive, urbanization that with the birth of the first real big city, able to accommodate an increasing number of people, kicked off pollution demographic . As just one example: in 1960 it was estimated a population increase of 0.3% (out of a total of 150 million individuals). But already in 1970 the population reached 3.6 billion individuals, with a rate of increase of 2.1%. It 'true that in subsequent years the rate of increase of the population suffered a decline, however, in 2012, the estimated population on our planet, is equal to 7 billion people.
Another factor which reflects the ratio births-deaths. In the seventeenth century the birth rate exceeded slightly mortality. Today, however, the average life expectancy has lengthened greatly and this, as selfishly hoped, breaks many equilibria.
According to some experts, "the world population explosion is the main cause of pollution and environmental crisis indian food and social crisis (conflict and increase the gap between rich and poor countries, increased immigration, etc.). E 'was calculated indian food that if all the current inhabitants could adopt the economic system and way of life of Europeans (or Americans), the rate of total pollution would be 10 times higher and with a "greenhouse effect" such as to endanger the life on the planet
Unfortunately we know pollution today is perhaps one of the worst disasters that hit our beloved planet. We all know that there is, and we know vaguely risks. But what I really do not know what it is, where it affects mainly, why and what is being done to fix it.
As we all know, life on Earth is governed by natural laws precise. The first, fundamental, is one for which nothing is created or destroyed, but everything changes. This is why every living being is born, grows, reproduces and dies. But the cycle of his life is not extinguished indian food by his death. His remains are always absorbed directly or indirectly from the Earth, enriching substances so that they can contribute to the formation and maintenance of new organisms. We can consider this endless cycle as a first circle of life.
We have a source of energy that the sun radiates its rays with a biomass, which in turn generates life forms contiguous, that through the different stages indian food of natural birth, growth, reproduction and death, are all interrelated to each other, to form the different food chains.
Thanks so solar energy, there is life on Earth. The radiation from the Sun have made, in fact, can the process of photosynthesis of the plant world, thanks to which it releases the oxygen we breathe and that is present in our atmosphere and without which food chains should dramatically in crisis.
It is therefore a system of life open with regard to the solar energy, but closed with regard to its substances. These must therefore always be present in the ecosystem General, and this constantly recycled, through the decomposition of its products, to return to be available. You could then sketch the idea that pollution is nothing but a form of recycling is not natural and therefore not compatible with our ecosystem. This recycling "outside the box" ends up being damaging and interfering with the natural one already present, causing serious imbalances, difficult to restore.
At first, the human intervention on the Biosphere was equal to that of every other living thing. Until such time as no longer considering the needs of other living beings and in so doing he blasted the delicate balance of the whole system, of which he is part.
Environmental pollution has accompanied human civilizations from the beginning. According to a 1983 article published in the journal Science: "Soot found on ceilings of prehistoric caves provides ample evidence of the high levels of pollution associated with inadequate ventilation of open flames." Also metal-forging indian food seems to have been a turning point in the creation of significant levels of air pollution.
More recently came the increasingly urgent need to obtain new lands needed to create ample space for crops and livestock. This has led to a work of deforestation forced that caused the first climatic changes, which over the centuries, have grown in parallel to the increase in human population.
During the industrial revolution it is then passed to a massive use of energy sources: first of all the combustion, also polluting factor. And, in this era, it developed another phenomenon invasive, urbanization that with the birth of the first real big city, able to accommodate an increasing number of people, kicked off pollution demographic . As just one example: in 1960 it was estimated a population increase of 0.3% (out of a total of 150 million individuals). But already in 1970 the population reached 3.6 billion individuals, with a rate of increase of 2.1%. It 'true that in subsequent years the rate of increase of the population suffered a decline, however, in 2012, the estimated population on our planet, is equal to 7 billion people.
Another factor which reflects the ratio births-deaths. In the seventeenth century the birth rate exceeded slightly mortality. Today, however, the average life expectancy has lengthened greatly and this, as selfishly hoped, breaks many equilibria.
According to some experts, "the world population explosion is the main cause of pollution and environmental crisis indian food and social crisis (conflict and increase the gap between rich and poor countries, increased immigration, etc.). E 'was calculated indian food that if all the current inhabitants could adopt the economic system and way of life of Europeans (or Americans), the rate of total pollution would be 10 times higher and with a "greenhouse effect" such as to endanger the life on the planet
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