Global warming
Throughout human history there have been climate changes and scientists have been able to explain most natural causes such as: volcanic eruptions or solar fluctuations, but the dramatic increase in the Earth's surface temperature over the last two centuries (since the beginning of the industrial revolution), especially the last 20 years, cannot be subject to the same natural causes; where human activity during this period a significant impact must be taken into account to explain this rise in temperature of the package surface or the so-called global warming. Human activity this century has increased the concentrations of atmospheric trace gases, which in turn has elevated global surface temperatures by blocking the escape of thermal infrared radiation. Natural climate variations are masking this temperature increase, but further additions of trace gases during the next 65 years could double or even quadruple the present effects, causing the global average temperature to rise by at least 1 °C and possibly by more than 5 °C. If the rise continues into the twenty-second century, the global average temperature may reach higher values than have occurred in the past 10 million years. (http://www.nature.com/nature/journal/v319/n6049/abs/319109a0.htm)
Global warming is a rise in temperature rates which leads to a global thermal climatic and environmental change we are witnessing today. These rates have accelerated since the beginning of the Industrial Revolution. To be able to understand the real reasons that lead to this global warming we must know that the oceans in which we live, consisting of gases such as: nitrogen, oxygen and carbon dioxide in addition to water vapor have a decisive influence on the temperature of the atmosphere of the planet. And some of these gases such as carbon dioxide and methane absorb heat. The more absorbed atmospheric thermal energy the higher the temperature of the oceans and the Earth's surface in general. This is called the green house effect. And absorption of gases in the atmosphere of heat emitted by the product of combustion of any material on the surface of the ground and in the atmosphere leads to higher rates of intake. The accumulation of carbon dioxide in the planet Venus, for example, to some extent led to a rise in temperature. (http://en.wikipedia.org/wiki/Global_climate_model)
The first major cause of global warming is the emission of greenhouse gases like carbon dioxide, methane, nitrous oxide etc into the atmosphere. The continued increase in greenhouse gas emissions, the level of water in the seas and oceans will rise and inundate coastal areas, and will hit the world, more heat waves, the intensity and frequency, and will come to drought in other areas as well. Another cause of global warming is the use of fertilizers in agriculture and the burning of organic matter. The growth in the use of fertilizers in agriculture, without control, will bring harmful insects and deadly diseases to humans, and will also reduce production of agricultural crops. Another cause of global warming is deforestation that is caused by cutting and burning of forests for the purpose of residence and industrialization. Logging and burning of forests is very serious because one-third of the organisms that live in forests depend on the survival of the dead trees, dry trees and wood as well.
The cultivation of areas that have removed trees is a simple solution which may help in the fight against climate change and the harm caused. Another solution is to convert solar energy into electricity, then electricity is transferred through the waves to the receiving stations which are huge on the surface of the ground and then is distributed through the electric grid in order of consumption. Yet another solution is that one of the quickest ways to reduce your global warming impact is to unplug the extra refrigerator or freezer you rarely use (except when you need it for holidays and parties). This can reduce the carbon dioxide emissions by nearly 10 percent. (http://en.wikipedia.org/wiki/Global_warming)
In my opinion the best solution is recultivation of forest trees which are cut because the trees reduce the severity of storms, and help to reduce temperatures in the summer and increase them in the winter, and it helps in the absorption of carbon dioxide.
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