SchoolChalao

  • Helpline: +91-8058868746
  • Mail us: help@schoolchalao.com
  • LOGIN | REGISTER
    Tutorial Library

Learning Point

Global Warming

Previous Next

What is Global Warming?

Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. Global warming is the current increase in temperature of the Earth's surface (both land and water) as well as its atmosphere. Average temperatures around the world have risen by 0.75°C (1.4°F) over the last 100 years about two thirds of this increase has occurred since 1975. In the past, when the Earth experienced increases in temperature it was the result of natural causes but today it is being caused by the accumulation of greenhouse gases in the atmosphere produced by human activities.

 

Causes of Global Warming:-

Fossil Fuels:- Pollution whether it is vehicular, electrical or industrial is the main contributor to the global warming. Everyday billions of vehicles release various gases into the atmosphere. This causes earth to warm up and increase its average temperature. Electricity causes pollution in many ways. Over 75% of the electricity worldwide is produced by burning of fossil fuels. Many gases are sent into the air when fossil fuels are burnt of which main is the carbon dioxide gas.

Landfills:- When we throw garbage out of our house it goes to landfills. Landfills are those big chunks of garbage that stink and can be seen in so many places around the world. The garbage is then used by big recycling companies to make some useful products out from it.

Overpopulation:- Another cause of global warming is overpopulation. Since carbon dioxide contributes to global warming, the increase in population makes the problem worse because we breathe out more carbon dioxide in the atmosphere. More people mean more demand for food, more carbon dioxide in the atmosphere, more demand for cars and more demand for homes.

Mining:- Oil and coal are two main culprits in producing greenhouse gases. Methane, like carbon dioxide creates a thick shield over the atmosphere trapping the sun’s rays. With the continued use of mining operations, these harmful gases will only increase.

Fertilizer Use:- Think of the countless farmlands across. The unique thing about fertilizer is that it produces nitrous oxide once it absorbs the soil. Nitrous oxide is 300 times more dangerous than carbon dioxide. The EPA strongly warns that the farming industry’s use of fertilizer is one of the leading causes of global warming.

 

Effects of Global Warming:-

Melting of Glaciers:- The melting of glaciers will create plethora of problems for human kind and the animals living on the earth. Due to increased global warming, the level of the sea will rise which will lead to flooding and this will in turn create havoc in human life. Apart from raising the sea levels, it will also endanger several species of animals and thus will hamper the balance of the ecosystem.

Climate Change:- Irregular weather patterns have already started showing results. Increased precipitations in the form of rain have already been noticed in polar and sub-polar regions. More global warming will lead to more evaporation which will cause more rains. Animals and plants cannot easily adapt to increased rainfall. Plants may die and animals may migrate to other areas, which can cause entire ecosystem out of balance.

Diseases:- As the temperature becomes more warm, it can affect the health of humans and the diseases they are exposed to. With the increase in the rainfall, water borne diseases are likely to spread like malaria. The earth will become warmer and as a result heat waves are likely to increase that can cause a major blow to the people.

Frequent Wildfires:- While wildfires are a natural occurrence, with the added carbon dioxide in the air, and hotter summers, the evidence speaks for itself. More frequent wildfires continue to surface in vast amounts each year. The rate at which they burn is longer than the last, and with the release of carbon dioxide into the air, not only are people’s lives in danger, but wildlife severely suffers. Each time a wildfire burns, the less oxygen there is to combat the dangerous amounts of carbon dioxide being released into the atmosphere.

Agriculture:- Global warming can affect agriculture. Although the results are not visible yet, but it may show its effects in years to come. As the global temperature will increase, plants will find it harder to survive and will die. Plants are the major source of food for human beings and as a result food shortage may occur. The shortage of the food may lead to war and conflicts in some countries.

 

school-chalao-global-warming1 image

 

Solution of Global Warming:-

Use energy efficient products:- Energy efficient products like fluorescent bulbs go long way in saving energy and that too at low cost. Energy produced by electronic gadgets at home or industry are largest producer of global warming. Using energy efficient products has vast potential to save both energy and money, and can be deployed quickly.

Phasing out fossil fuels:- Burning of fossil fuels like wood or coal produce more carbon emissions than other product. Phasing out coal burning power plants and not burning fossil fuels directly will reduce dependence on fossil fuels.

Stop deforestation:- Less trees means less absorption of greenhouse gases which are in itself responsible for more global warming. We can fight global warming by reducing deforestation and forest degradation. Managing forests and agriculture therefore should be the top priority to reduce carbon emissions.

Use public transportation:- Pollution from vehicles account for major portion of carbon emissions. Usage of public transportation, car pooling and low carbon fuels not only reduce pollution but also reduce vehicular traffic on the road. In the long run, public transportation appears more cost friendly and doesn’t pinch the pocket.

Switch off gadgets when not in use:- Often when we go out, we forget to switch off fans, bulbs, gadgets when actually there is no use of them. These devices generate heats which in itself contribute to global warming. Switching off these devices will save electricity, lower down electricity bills and reduce global warming.

 

school-chalao-global-warming2 image

 

Very Useful (0)

Useful (0)

Not Useful (0)