Unseen Comprehension-34 Alim (Green House Effect)

Green House Effect.

গ্রীনহাউজ প্রতিক্রিয়া।

Scientists have recently reported that the polar ice caps are melting. This is due to a rise in atmospheric temperature known as the ''Green House Effect.'' According to Melvin Calvin, who won a Nobel Prize for earlier research, the carbon di-oxide is primarily responsible for temperature rise in atmosphere. The carbon dioxide is given off when coal and oil are burnt. This gas is accumulating in the atmosphere and causing temperature to rise. As a result the ice covering North and South poles is melting and may eventually lead to a rise in sea levels which could flood in many areas of the world. Even if we take measures to stop the ice-melting, it may take years to control the rise in sea levels. The '' Greenhouse Effect'' is just one of many fundamental changes which are taking place in the environment. Tropical rain forests which took fifty million years to grow, are being reduced at the rate of fourteen acres per minute. The total area of the world's deserts is increasing every year. Many species of animals and plants are endangered with the threat of extinction.
In presenting the results of Global 2000'' Edmund Muskie says that world population growth the degradation of the Earth's natural resources base and the spread of environmental pollution collectively threaten our existence on earth. if the environment is not protected this world will soon become uninhabitable.