ജി.വി.എച്ച്.എസ്.എസ്. വട്ടിയൂർക്കാവ്/അക്ഷരവൃക്ഷം/ GLOBAL WARMING
GLOBAL WARMING
Global warming means continuous rise in earth's average surface or environmental temperature due to greenhouse effect. Now what is greenhouse effect? The earth's atmosphere is composed of nitrogen, oxygen etc. which is responsible for maintaining average temperature for life on earth at 16 degree Celsius. When the sun rays collide with the earth's surface, most of the energy is absorbed by greenhouse gases such as carbon dioxide, methane,nitrous oxide,sulphur dioxide, carbon monoxide while a part of the solar radiation called infra-red radiation returns into space by means of cloud,snowflakes and other reflective things. The rise in sea level, changes in weather, melting of glaciers, decrease in forests destruction of many types of organisms and vegetative species, increase in various deceases etc. are seen in all parts of the world. In fact, global warming is a major issue related to the existence of mankind. Causes of global warming The most important reason for the increase in the temperature of our earth is the continuous increase in the pollution, due to which the level of green house gases is increasing, which is damaging the ozone layer. With the industrial revolution over the last 100 years, the proportion of the carbon dioxide and the green house gases has increased in the atmosphere. Increasing number of factories , vehicles, fossil fuels and the population of humans all have contributed to the increase in the amount of these gases. The use of chemical fertilizers and pesticides is also increasing pollution in soil, water and air. Due to the cutting of trees and use of fossil fuels to operate power plants , the level of carbon dioxide is increasing. As a result, the quantity of sun's heat absorbed by them has also increased, leading to global warming. EFFECTS OF GLOBAL WARMING Due to more emission of harmful substances, glaciers are melting, and sea water levels are rising, posing a treat to the coastal area around the world. Global warming is also leading to increasing incidents of drought, water shortages, water shortages, famine, floods, land slides, hurricanes, change in rain patterns and more such extreme climatic conditions. The temperature of earth has increased between 0.4 to 0.8 degrees Celsius (Fahrenheit). In the last hundred years, seas present in more than 70% area of the world land has an extra ordinary impact on global weather, but the heat from the global warming is rapidly landing in the sea. THE EFFECTS OF GLOBAL WARMING AT A GLANCE 1. The melting of glaciers . 2. Depletion of ozone layers. 3.Toxic gases in the environment. 4. Unseasonal rains. 5. Fierce storms, cyclone, hurricanes and droughts. 6. Different types of skin ailments, cancer-related diseases, malaria and dengue. 7. Disappearance of many species of birds and animals who are unable to cop with the changing environment. 8. Increasing incidence of forest fires. 9. Increasing risk of flood as snow melts on the mountains. 10. Expansion in the dessert dune fierce heat. 11. Decreasing forest cover. HOW TO PREVENT GLOBAL WARMING 1. We have to reduce the proportion of carbon dioxide and green house gases and in the atmosphere. 2. It is necessary that we minimize use of fossil fuels and reduce pollution in factories. 3. Control of emissions by vehicles is necessary too. 4. We have to use source of energy in which carbon is used in a limited amount or not at all, such as solar energy , atomic energy, and wind power etc... 5. Trees our biggest helper in our fight against global warming, should be protected from cutting and more trees should be planted. 6. There is a need to decrease the use of fossil fuels. 7. Non-biodegradable substances such as plastic should not be used. 8. Tropical forests should be protected with a special funding mechanism. 9.The use of nuclear energy should be minimized. 10. Pollution producing vehicles have to be banned. 11. We should reduce the use of air conditions and equipments. CONCLUSION If the level of global warming goes up, then that day will not be far away when the earth will be completely destroyed. That's why we need to think seriously about it to avoid the disastrous effects of global warming. It should not be the responsibility of only one government or just one country but everybody should understand their responsibility towards controlling global warming and environment pollution. The problem of global warming can be tackled only by public awareness and mutual understanding. The way the population is increasing, the pressure on Earth's resource in the problem of global warming. We can provide safe food, air and water to the growing population, only when the earth will survive.
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