How does the greenhouse effect work?

How does the greenhouse effect work

  • In this article, you will know that What Is the Greenhouse effect? or you can say it How does the greenhouse effect Work?. At first, we will talk about AIR then The OZONE LAYER  and after that What is the Greenhouse effect?. When you will know about the Ozone Layer and Air then you can Understand the greenhouse effect very well. So, let's start...

greenhouse effect

  • AIR

As residents of Earth, Most of us are more immediately aware of our air than of our land or water. We live in the lower atmosphere and interact with the air for our daily survival. On a hot, hazy day in Summer, Pollution may hang low over our cities: we can feel it, breath it in, and depending on where one lives, perhaps actually smell it.
   In recent decades our awareness of the toxins and particulates that have earned the atmosphere has grown. We also sense that air from day to day is warmer, and we have learned that the 1990s were possibly the warmest decade of the last millennium.
   The greenhouse gases in Earth's atmosphere are actually good for the planet. They have been there since the atmosphere first formed, and they keep our planet from becoming an icy mass. Without the natural greenhouse effect, the Earth would be more than 50 degrees F colder than it today, with an average global temperature of only 5 degrees F much less hospitable to life.
   But in the case of greenhouse gases, too much of a good thing is not good. The planet has been experiencing an increase in carbon dioxide in the atmosphere, generated in large part of the fossil fuel emissions and the proliferation of other greenhouses gases such as nitrous oxide and methane. What has caused this increase? By and large, human activities are to blame. At one level, greenhouse gases protect us, but when they rich a higher level, they become a threat to comfort safety and even life.
   Global temperatures are predicted to increase by 4 Percent to 20 Percent on average through the end of the 21st century. Scientists who study the air and the atmosphere are not all in agreement about either the causes or the ramifications of the current trend toward global warming. Most do agree, however, that the trend began as far back as 1750, the beginning of the industrial revolution. 
   In the absence of definitive knowledge of the future, say many, we must plan for a worst-case scenario. The efforts begin by understanding the current science behind the changes in Earth's OZON LAYER and the resulting greenhouse effect.

  • The OZONE Layer

The Ozone layer is a region in Earth's stratosphere that contains a high concentration of a bluish gas called OZONE. Although OZONE  Constitutes only about one-millionth of the atmosphere 's gases, it absorbs most of the sun's ultraviolet radiation. Without OZONE Layer, this radiation would destroy all life on the surface of the planet.
   Ultraviolet radiation creates and perpetuates OZONE. When an OZONE molecule is struck by an ultraviolet ray, it falls apart, yielding free Oxygen and an Oxygen from an atom that combines with another free oxygen to form more OZONE. This cycle absorbs most UV radiation. 
    Among the worst offenders are chlorofluorocarbon (CFCs), usually found in refrigerants and aerosol sprays and now generally banned.
   Falling OZONE levels have caused a thinning of the OZONE layer above Antarctica, known as the OZONE hole. The Antarctica OZONE hole increased dramatically in size in the 1980s and 90s but has stabilized in recent years.

  • What Is the Greenhouse effect?

The greenhouse effect allows the short-wave radiation of sunlight to pass through the atmosphere to Earth's Surface but makes it difficult for heat in the form of long-wave-radiation to escape.  
   Earth Radiates energy, of which about 90 Percent is absorbed by atmosphere gases: water vapour, carbon dioxide, OZONE, Methane, nitrous oxide, and other gases have come to be called greenhouse gases because they hold in light and heat, just as a greenhouse does for the shake of the plants inside.
    These gases increased during the 20th century due to industrial activity and fossil fuel emissions. For example, the conservation of carbon dioxide in the atmosphere has recently grown by about 1.4 Percent annually.
   This increase in greenhouse gases is one of the contributors to the observed patterns of Global Warming.
How does the greenhouse effect Work
Greenhouse effect

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