global warming
Global environmental problems
February 20, 2012 | 
Author The man, who lived in the 20th century, was in a society that is saddled with many dilemmas, accompanying socio-economic development. The problem of relocation, nutrition, health, electricity, etc., do not help the situation and problems of the decline of forests (25 ha) of land, desertification (46 ha), the increase of greenhouse gases in the atmosphere, etc. Society faced a grave crisis and show-grounds it consists of position relations of society and the environment, even in times of transition to manufacturing economy.
Interaction between society and nature is an objective: people are part of nature and nature is part of its economy through natural resources. With the emergence of mental abilities, their subdued man forming his upbringing tasks as a person. The technological revolution has opened the curtain on the ability to meet people’s needs, interests, and at the same time, pressure on natural systems increased by a thousand times. There are no restrictions on the full enjoyment of natural resources led to an irreversible deterioration of the quality of the environment. Trees forest, testing of atomic bombs, the subordination of all electricity-world as not fitting can be said, was to remind the greenhouse, which develops, but with difficulty, plants and living things, which doesn’t help, but on the contrary that puts barriers, air and drinking water. This situation is the root of global environmental problems.
In fact the main reason a viable environment not much. Has long been understood that people find themselves right tackle world, trying not to spoil the nature, but of course with what purpose, get a good pocket. This approach to the problem, already global, will lead to the destruction of all life. Not to mention global warming, this is the outcome of the human factor. Humanity that ignores the “hints” of nature, considering that has superiority over the situation. In the meantime, human technology is increasingly upset the equilibrium in the environment.
However, with the increase in population on the planet are increasing and the pressure on the natural environment. Become more complex and the types of pollutants. After all, man progresses. More original chemicals which have not the good impact on the biosphere. Considerable damage is caused to the water the food, petrochemical, woodworking industry.
Inappropriate use of natural resources-minerals soon will be a deficit. After all, they are finite types of natural resources. This outcome occurs when mining, enrichment, transport, processing. As a result of huge amounts of mountain masses break the balance of the surface of the lithosphere. Under their weight drops or swelling, this could lead to a breach of the groundwater regime and water logging of large areas.
Posted in global warming, Pollution | 
Tags: Atomic Bombs, Causes Of Pollution, Curtain, Desertification, Deterioration, Drinking Water, Emergence, Equilibrium, Gases In The Atmosphere, Global Environmental Problems, Global Warming, Grave Crisis, Greenhouse Gases, Human Technology, Mental Abilities, Nutrition Health, Subordination, Superiority, Technological Revolution, Time Pressure, Upbringing | 
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Ecological crisis
The economic activities of mankind during the last century have led to serious pollution of our planet in a variety of waste production. Air, water and soil in areas of major industrial centers often contain toxic substances which exceed maximum permissible concentration (MPC). Since cases significantly exceeding the MPC sufficiently frequent and increasing morbidity related to pollution of the natural environment, in recent decades, professionals and the media, and follow them and people began to use the term “ecological crisis”.
All you should split the concept of “local” and “global”. The local ENVIRONMENT is expressed in the local raising of dirt-chemical, thermal, noise, electromagnetic-through one or several closely spaced sources. As a rule, the local ENVIRONMENT may be more or less easy to overcome administrative and/or economic measures, for example by improving process technology in the enterprise polluting or through redevelopment or even closure. Much more serious risk is global ecological crisis. It is a consequence of the whole economic activity of our civilization and manifests itself in changing the characteristics of the natural environment on a global scale and thus dangerous to the entire population of the Earth. Deal with the global ENVIRONMENT is much harder than with a local, and this problem will be solved only in the case of minimization of pollution produced by humanity to the level to which the nature of the Earth would be unable to cope on their own. Currently the global ecological crisis includes major components: acid rain pollution, the greenhouse effect, and the so-called ozone hole.
An important source of SO2 is the non-ferrous metal industry: production of copper, nickel, cobalt, zinc and other metals includes stages of roasting of sulphides. Nitrogen oxides-predecessors of nitric acid-enter the atmosphere primarily in the flue gas of boilers of thermal power plants and exhausts of internal combustion engines. At high temperatures, developing in these devices, nitrogen air partially oxidized, giving a mixture of Mono-and nitrogen dioxide.
Posted in global warming, Pollution | Tags: Economic Activity, ENVIRONMENT, Global Ecological Crisis, Major Industrial, Pollution | Comments Closed
The illusion of a green economy
Everything we do to protect the living planet that is the land against factors that took your balance and caused, as a result, global warming is valid and should be supported. In fact, the term “global warming” hides phenomena such as: prolonged droughts that decimate grain crops, large floods and windstorms, water shortages, soil erosion, degradation of those hunger, responsible for the sustainability of the planet (water, energy, soil, seeds, fibers etc.).
The production of low-carbon, organic products, solar and wind power, the fall, the more possible intervention in the rhythms of nature, the pursuit of replenishment of goods used, recycling, everything that comes under the name green economy are most searched and broadcast processes. And it is recommended that this mode of producing prescribing.
Even so we must not evade and lose the critical sense. Talk of green economy to avoid the issue of sustainability which is in opposition to the current mode of production and consumption. There is green and not green. All products contained in the various stages of its production, toxic elements, harmful to the health of the Earth and society. Today by method of life cycle analysis can view and monitor the complex interrelationships between the various steps, extraction, transportation, production, use and disposition of each product and its environmental impacts. Ai is clear that the intended Green is not as green as well. The green represents only one step in a process.
Take as example the ethanol, given how clean energy and alternative to fossil energy oil and dirty. It is a clean mouth only supply pump. The whole process of its production is highly polluter: pesticides applied to soil, burned, the carriage with large trucks that emit gases, emissions from factories, the liquid effluents and biogases. The pesticide eliminates bacteria and expels the worms that are fundamental to the regeneration soils; they just come back after five years.
To make a production, necessary for life, which does not stress and degrade the nature, we need more than the pursuit of green.
To save us not see another path other than the one pointed to by the Earth Charter: “the common destiny urges us to seek a new beginning; this requires a change in mind and heart; demand a new sense of global interdependence and of universal responsibility “.
Posted in global warming | Tags: Critical Sense, Grain Crops, Liquid Effluents, Planet Water, Soil Erosion, Toxic Elements | Comments Closed
Life and environmental pollution
Environmental pollution. There are four of the environments: water, soil and living organisms. In general, is all that surrounds the organism, or directly or indirectly affect their status, development and survival. But lately more and more pressing topic of pollution, because as a result of technical progress and human activities affect the reckless.
What exactly do people breathe and eat. Active environmental pollution began about two hundred years ago, when it began development of the industry in Europe, especially in England. Coal ash and dust is very polluted air, and even affect the speed of evolution. For example, some of the Butterfly over two hundred years have changed their colors to adapt to new conditions of life in parts of Europe where there are many industrial companies. Previously, this butterfly has a light color and hide the light crust, who escaped from the bird. As a result of deposition of coal dust in large quantities. To adapt to new conditions of life, the butterflies have changed their colors to black, so they can be seen in the blackened crust.
With the development of the industry, started to increase emissions of harmful gases in the atmosphere. In the 20th century coal came to replace oil and gas. Throwing out the combustion products of oil, nitrites and humans have created a new problem: the problem of acid rain. Acid rain clouds can move with the wind at a distance of thousands of kilometers from the gas plant, which falls far from the pollution. Acid rain causes heavy damage to crops, destroying fertile topsoil, killing the useful micro-organisms.
Gas emissions into the atmosphere, composed of Freon ® in the refrigerator and aerosols, as well as certain substances contained in the packet of food from fast food is called, the materials used in everyday life deplete the ozone layer that protects Earth from harmful ultraviolet radiation that can cause people have skin cancer, eye diseases and strong results endanger marine life and is highly susceptible plants. Arctic zone where the ozone layer is the most subtle. It was ascertained that the hole in the Antarctic is growing, and has already reached a large size. Excessive carbon dioxide emissions from combustion and respiration of living things, causing the formation of so-called greenhouse effect: carbon dioxide film comes from the sun reflected from the earth, creating a greenhouse effect. As a result of the accumulation of excess heat, Earth’s temperature began to rise. Higher temperatures lead to ice melting, causing sea level rise. Calculated that if all the ice will melt, sea levels rising 61 meters and cities like London and New York who disappeared under the water, and countries like the Netherlands and Bangladesh disappear under water. It will also lead to disaster for the world’s flora and fauna. Equally important role played by water and soil pollution. This can be regarded as an example of the black sea: everyone knows that black sea, Dead Sea.
Posted in global warming, Pollution | Tags: Ash And Dust, Coal Ash, Fertile Topsoil, Gases In The Atmosphere, Greek Parthenon Temple, Rain Clouds | Comments Closed
Consequences of global warming
Due to the potential effects on human health, economic and environmental global warming has been a source of great concern. Major environmental changes have been observed and linked to global warming. Examples of secondary evidence cited below (reduced ice cover, sea level rise, changes in weather patterns) are examples of the consequences of global warming that may influence not only human activities but also ecosystems. Increased global temperature change allows an ecosystem, some species may be forced out of their habitats (possibly to extinction) because of changes in conditions while others can spread, invading other ecosystems.
However, global warming may also have positive effects as it increases temperatures and increased concentrations of CO2 can enhance the productivity of the ecosystem. Satellite observations show that the productivity of the northern hemisphere has increased since 1982. On the other hand is the fact that the total amount of biomass produced is not necessarily very good, because biodiversity may decrease in silence while a small number of species to be flourishing.
The surface warming will favor an increase in evaporation in the oceans, which will cause the atmosphere there is more water vapor (the most important greenhouse gas, mainly because it exists in large quantities in our atmosphere). This may cause more increase the greenhouse effect and warming the surface to be reinforced. We, in this case, wait a medium heat 4 to 6 ° C on the surface. But more moisture (water vapor) in the air can also mean the presence of more clouds in the atmosphere that one thinks that, on average, may cause a cooling effect.
The clouds are in fact an important role in energy balance because they control the energy that enters and exits the system. Can cool the Earth by reflecting sunlight into space, and can warm it by absorbing the infrared radiation radiated by the surface in a manner similar to that of gases associated with the ‘greenhouse effect’. The dominant effect depends on many factors, including altitude and size of cloud droplets and its.
On the other hand, increased evaporation will lead to intensification and poor distribution of rainfall, thereby aggravating erosion. This may cause results in more extreme weather, with the gradual increase of global warming.
Global warming may also have less obvious effects. The North Atlantic Current, for example, is caused by temperature differences between the seas. And apparently she is weakening as the global average temperature increases. This means that areas like Scandinavia and Britain that are warmed by the current may have colder climates despite the increase in global warming.
The increase in the number of dead, homeless and economic losses due to severe weather planned attributed to global warming can be worsened by growing population densities in affected areas, although temperate regions expected to have some minor benefits such as fewer deaths due exposure to cold. A summary of probable effects and current knowledge can be found in the report made to the “Third Report of the IPCC Balance” by Working Group 2. Already a summary of the latest, “Room Balance Report of the IPCC,” says that there is observational evidence of an increase in the number of tropical cyclones in the North Atlantic since about 1970, compared with an increase in sea surface temperature, but the detection of long-term trends is complicated by the quality of records prior to routine satellite observations. The summary also says there is a clear trend in the number of tropical cyclones in the world.
Additional anticipated effects include sea level rise from 110 to 770 mm between 1990 and 2100, impact on agriculture, possible slowing of the thermochemical circulation, reductions in the ozone layer, increased intensity and frequency of hurricanes, low pH of the ocean and spread diseases such as malaria and dengue. One study predicts that 18% to 35% of 1103 species of plants and animals will be extinct by 2050, based on projections of future climate.
Posted in global warming | Tags: Consequences Of Global Warming, Global Temperature Change, Greenhouse Effect, Greenhouse Gas, Infrared Radiation, Sea Level Rise | Comments Closed