write an article in about 120-150 words on global warming, how it is being created or its prevention for our environment.
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Answer:
Global warming and climate change refer to an increase in average global temperatures. Natural events and human activities are believed to be main contributors to such increases in average global temperatures. The climate change, caused by rising emissions of carbon dioxide from vehicles, factories and power stations, will not only effects the atmosphere and the sea but also will alter the geology of the Earth. Emissions of carbon dioxide due to our use of fossil energy will change the climate and the temperature is estimated to increase by 2 to 6o Celsius within year 2100, which is a tremendous increase from our current average temperature of 1.7o Celsius as predicted by IPCC. This may cause huge changes to our civilization, both positive and negative, but the total impact on our society is currently very uncertain. Forecasts indicate that major storms could devastate New York City in next decade whereas Gulf countries will get affected badly well before.
Global warming primarily caused by increases in “greenhouse” gases such as Carbon Dioxide (CO2), Nitrous oxide (NOX), Sulphur dioxide (SO2), Hydrogen etc.,. A warming planet thus leads to climate changes which can adversely affect weather in different ways. Some of the prominent indicators for a global warming are detailed below:
Temperature over land
Snow cover on Hills
Glaciers on Hills
Ocean Heat content
Sea Ice
Sea level
Sea surface temperature
Temperature Over Ocean
Humidity
Tropospheric Temperature
Global warming in today’s scenario is threat to the survival of mankind. In 1956, an US based Chief consultant and oil geologist Marion King Hubert, (1956) predicted that if oil is consumed with high rate, US oil production may peak in 1970 and thereafter it will decline. He also described that other countries may attain peak oil day within 20-30 years and many more may suffer with oil crises within 40 years, when oil wells are going to dry. He illustrated the projection with a bell shaped Hubert Curve based on the availability and its consumptions of the fossil fuel. Large fields are discovered first, small ones later. After exploration and initial growth in output, production plateaus and eventually declines to zero.