One of the greatest problems that the world is facing today is Environmental pollution, increasing with every passing year and causing grave and irreparable damage to the earth. Environmental pollution consists of five basic types of pollution, namely, air, water, soil, noise and light. Pollution can take many forms. The air we breathe, the water we drink, the ground where we grow our food, and even the increasing noise we hear every day—all contribute to health problems and a lower quality of life.

1. Ozone and Global Warming

     There is a lot of confusion surrounding the role played by ozone in global climate change. I often encounter college students who conflate two very distinct problems: the hole in the ozone layer, and greenhouse gas-mediated global climate change. These two problems are not as directly related as many think. If ozone had nothing to do with global warming, the confusion could be cleared up simply and quickly, but unfortunately, a few important subtleties complicate the reality of these important issues.

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2. Air pollution

     Air pollution is one such form that refers to the contamination of the air, irrespective of indoors or outside. A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution. It occurs when any harmful gases, dust, smoke enters into the atmosphere and makes it difficult for plants, animals and humans to survive as the air becomes dirty.

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3. Water pollution

     Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.

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4. Soil pollution

     Soil pollution is when humans introduce harmful objects, chemicals or substances, directly or indirectly into the soil in a way that causes harm to other living things or destroyssoil or water ecosystems.

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5. Noise pollution

     Most of us are very used to the sounds we hear in everyday life. Loud music, the television, people talking on their phone, the traffic and even pets barking in the middle of the night. All of these have become a part of the urban culture and rarely disturb us. However, when the sound of the television keeps you from sleeping all night or the traffic starts to give you a headache, it stops becoming just noise and start turning into noise pollution. For many of us, the concept of pollution is limited to nature and resources. However, noise that tends to disrupt the natural rhythm of life makes for one solid pollutant.

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6. Light pollution

     Light pollution is excessive and inappropriate artificiallight. The four components of light pollution are often combined and may overlap: Urban Sky Glow—the brightening of the night sky over inhabited areas. LightTrespass—light falling where it is not intended, wanted, or needed.

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