write essay on greenhouse effect and global warming? class 7th
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Answer:
Short Essay on Greenhouse Effect and Global Warming
Industrialisation, urbanisation and population explosion has resulted in increased accumulation of poisonous greenhouse gases in the atmosphere. These poisonous gases have cascading negative impacts on the oceanic ecosystem of our planet. From affecting the water cycle to creating unpredictable climatic conditions, the effect of global warming on oceans are many. If the water cycle is affected, the oceanic currents will not be predictable by scientists and as a result of which the damage caused due to cyclones, storms and floods will increase.
Other than affecting human beings and their property, the increasing pollution of water and air is also having a negative effect on aquatic life. Dumping of oil, nuclear waste, plastic waste and other such dangerous chemicals in the ocean has led to the poisoning of the aquatic life and many aquatic beings have become extinct over the years. This poisoning of ocean, air and land will eventually come back to us in the form of the food we eat and it starts poisoning the human population.
I would like to conclude by saying that global warming is one of the biggest challenges for the international community. Every country has to come forward to reduce carbon footprint and adopt environmental-friendly green energies such as wind energy, solar energy or nuclear energy.
Answer:
Global warming is a phenomenon in which the average temperature of the earth increases due to the accumulation of greenhouse gases
Greenhouse gases are produced by the burning of fossil fuels in factories, in vehicles run by petrol or diesel car and by burning of crops
Carbon dioxide is the most harmful greenhouse gas that is resulting in the warming of our planet gradually
Impact of global warming results in the melting of ice caps and affecting water cycle on oceans which is basically harming the balance of our natural cycle
Global warming in the future will lead to a decrease in oxygen content in oceans which can ultimately affect the aquatic life in our water bodies
Proper policies should be formulated to reduce the carbon footprint of countries
It is said that by the year 2030, the average temperature of the earth will increase by 2.5 degree Celsius
The impact of global warming on oceans is witnessed through floods, storms, cyclones, hurricanes and other such unpredictable natural calamities
The poisoning of the food we eat, the air we breathe and the water we drink is the result of man’s greed for economic growth at the cost of nature
More than half of earth is covered by water and if the water bodies are slightly disturbed from its natural balance, then scientists predict that floods and tsunamis on a large scale can eliminate human civilization