What is global warming?

Global warming concerns the fact that the Earth's atmosphere is warming near its surface - simply put, it is warmer. The term does not mean the cause or cause. The scientific community believes that climate change has occurred throughout the country's history and continues to occur in the future. Some evidence combines global warming with solar activity; However, there are other theories. The gases that make up the atmosphere are an analogous greenhouse in that they allow to pass sunlight, and then capture a large part of the heat from the leakage. This naturally occurring phenomenon maintains the ground surface warmer than it would be different. However, human produced compounds are regularly released into the atmosphere in recent years, however, "thicken the greenhouse wall" beyond naturally occurring levels. When this happens, even less heat escapes, causing the temperature to increase. This is called a greenhouse warming .

While the scientific community accepts global warming as a given, the greenhouse warming is controversial. AllIt agrees that compounds created by man, such as carbon dioxide, methane, chlorofluorocarbones (CFC), and others are released into the atmosphere, but some say it is not clear how these factors to change temperature.

Another different problem that is commonly associated with the warming of greenhouse schools and global warming is ozone. Ozone is a naturally occurring gas in the lower atmosphere that helps to capture heat. Burning fossil fuels creates even more ozone and is one component of smog. Both ozone generates and caught heat increases the greenhouse effect.

In addition, Ozone plays a role in the upper atmosphere where it protects Earth from a deadly ultraviolet (UV) radiation. Unfortunately, CFC - the same person produced the compound as a greenhouse gas in the lower atmosphere - destroy ozone. This may result in holes in our upper ozone layer, as can be seen in Antarctica, where cold temperatures, atmosphereRic circulation and other factors combine and "draw" these ozone holes.

Global warming and the problems that surround its, have far -reaching consequences and can significantly affect human life at many levels. For this reason, scientists want to know how long the country has been warming up, at what speed it is warming and what factors they cause. These answers can better prepare people to master its effects.