The of natural resources and the degradation

The relationship of man to his natural and cultural environment has changed a great deal in a short time. The man, thanks to the industrial revolution and the technological progress, was able to develop his hold on the environment. Having the feeling of better “mastering” nature, he has forgotten his vulnerability to be alive and the dependence that binds him to what surrounds him. Technological progress has allowed it to produce more, more quickly and to seek ever higher yields, nature being often more than a resource to exploit.
It is only recently that we have realized the possible consequences of over-exploitation of natural resources and the degradation of the environment by very different types of pollution. One-off measures were taken to try to solve the problems as they appeared. But the degradations not only have not disappeared, but in addition, they have worsened. Indeed, elaborate solutions failed to take into account the complex interactions that animate nature, and today we face global ecological imbalances caused by multiple causes in time and space.
The complexity of the environment-health interactions
The environment is a triggering factor for many diseases through the attacks of the physical environment (pollution, unhealthy food, urban gigantism, destruction of green spaces) and the shortcomings of the social environment (loneliness, crumbling family, unemployment) and ideological (spiritual emptiness). The environment is a factor facilitating the invasion of the disease by creating multiple stresses that weaken the immune system.
The link between the quality of the environment and the health status of populations is recognized by scientific communities more frequently than before, but there are more questions than answers. As examples, let’s mention some recently established health-environment links.
The increase in allergies is striking. A group of Japanese experts worked on pollen allergy:
The average frequency in Japan of poll enosis caused by cedar trees was 9.6%;
The maximum values for this poll enosis were found along streets with a high density of traffic (13.2%). In neighborhoods less frequented by cars, but where there are cedars, this value falls significantly (5.1%);
In areas where there are no cedars, but where traffic is dense, this cedar-specific pollinosis are 9.6%, which is higher than the values of neighborhoods where there are cedars, but no car traffic 4.
Recently, another phenomenon, cross reactivates, has been reported more and more frequently. For example:
In the case of allergic people who react to foods such as anise, celery, chamomile, while being sensitized to mugwort pollen;
in the case of people who react to apples, hazelnuts and curry, while being sensitized to birch pollen;
in the case of people who respond to peanuts, soy and peppermint while being sensitized to grass 5.
It is established that the “sick building syndrome” , that is to say the appearance of health problems such as irritation of the eyes, mucous membranes of the respiratory system, neurological problems such as fatigue, pain of head, dizziness, etc., can come from the “chemical cocktail”: solvents, formaldehyde, pyrethroids emitted by new furniture (paints, lacquers, carpets, leather, woodwork, etc.).
The growing weight of these chronic degenerative diseases and syndromes can not be denied. Associations of patients affected by these diseases have been created: for example, against the use of fungicides (PCP, pentachlorophenol, etc.) or insecticides (lindane, etc.) in wood or leather treatment products, against formaldehyde, against asbestos, against electromagnetic fields. Trials were won in Germany and Canada, as judges found that the relationship between prolonged exposure and adverse health effects was very likely. This is essential because the judges have not claimed a hundred percent proof of a cause-and-effect relationship advocated by manufacturers and their experts.

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