Question

Report writing on ‘Global warming - its causes and impact’

Answer 1

Global warming Introduction and meaning: The rise in earth’s surface temperature as a consequence of greenhouse effect is called Global Warming. The thickening of earth atmosphere because of presence of increased carbon dioxide and other greenhouse gases is called greenhouse effect. What causes Global Warming? 1. Deforestation and industrial emissions result to an increase greenhouse gases (such as carbon-dioxide) around earth’s atmosphere. 2. These greenhouse gases traps and absorbs atmospheric heat and ultimately causes Global warming (an increase earth’s surface temperature). Effects / Impact of Global Warming If Global warming continues the world would be in danger. The major effects and impacts of Global Warming are: 1. Climate Change: Global warming is causing climate change. The world’s is becoming warmer and warmer. There is also prediction of regional climate changes along the ecosystem. 2. Sea Level Change: One major consequence of global warming arising out of greenhouse effect is the rise in sea level. Four major changes take place prior to this. They are: Thermal expansion, mountain glacier melting, Greenland ice sheet melting and Polar (Arctic and Antarctic) ice sheet melting. Thus, the coastal cities and ports may be submerged under sea-water. Many islands may vanish from the earth surface as well as from the world map. 3. Water Balance: Although changes in sea-level have received much publicity, problems of water availability are likely to be more serious and perhaps more expensive to solve. In future, warmer world will face water crisis in some parts while in other regions it will be wetter than it is now. There is uncertainty regarding regional forecasts of future precipitation as warming of globe makes it difficult to predict. Also, pattern of agricultural changes, or effects on ecosystems in general are fairly unpredictable. 4. Human Health: The human health is put at risk because of Global warming. In recent years, there have been newer reports of spread of major tropical diseases with changing climate. As the earth becomes warmer, more and more people are likely to be affected by tropical diseases. How to prevent Global Warming? The problem of Global Warming can be controlled by minimizing the emission of greenhouse gases into the environment. The following preventive steps would help save the earth from the harmful effects of Global Warming. Laws. The Laws that governs pollution and greenhouse gases should be followed. Reduction in thermal power generating stations. Reduced dependence on thermal power for our electricity need would help towards reducing the quantity if carbon dioxide in the environment. The use of fossil fuels for generating conventional energy is a major of greenhouse gases. We should not waste paper. We can save paper by keeping documents in electronic format and by not printing emails. Planting Trees. Trees absorb carbon dioxide and releases oxygen. Trees are helpful in reducing the problem of global warming. Sharing our car. We can share our car while going to office or performing other scheduled activities. On one hand, we will save money, and on the other, we will emit less greenhouse gases.

Answer 2

Answer:

Given below is the report

Explanation:

The phenomenon of a slow rise in temperature close to the earth's surface is known as global warming. Over the last century or two, this tendency has been noted. The earth's climate pattern has been altered by this alteration. Although the idea of global warming is still up for debate, scientists have presented evidence to support the idea that the earth's temperature is steadily increasing.

Global warming has a number of causes that are harmful to people, plants, and animals. These factors could be a result of human activity or could be natural. Understanding the harmful effects of global warming is crucial for tackling the problems.

Deforestation

The primary source of oxygen is plants. They absorb carbon dioxide and expel oxygen to keep the environment in equilibrium. For a variety of domestic and commercial uses, forests are being destroyed. This has caused an imbalance in the environment, which has resulted in global warming.

Employing Vehicles

Even over extremely short distances, using a car produces a variety of gaseous pollutants. When fossil fuels are burned in vehicles, a lot of carbon dioxide and other poisons are released into the atmosphere, raising the temperature.

Chlorofluorocarbon

Humans have been introducing CFCs into the environment through the excessive use of air conditioners and freezers, which has an impact on the ozone layer in the atmosphere. The ozone layer shields the surface of the earth from the sun's harmful ultraviolet rays. Because of the ozone layer's thinning due to the CFCs

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