Global Warming and Human Population

2270 WordsJun 24, 201310 Pages
Essay on Deforestation in India Forest loss is directly-associated with human population growth. In 1921 human population was 25. 13 crores and forests cover was 104.05 million hectares. By 1989, forests cover reduced to 64.01 m ha, while human population in 1991 reached to 84.39 crores. Deforestation is due to diversion of forest land to agricultural land, river valley projects, roads, industiy and urbanization, transmission lines and activities like shifting cultivation, fuelwood and timber collection overgrazing fires and acid rains (vide Rana, 2006). Green wealth index (GWI) is an indicator of green wealth possessed by a State or Union Territory and Green Protection index (GP1) is a qualitative calculation of protection accorded…show more content…
Most scientists agree that planet’s temperature has risen 0.5 degree Celsius since 1900 and will continue to increase at an increasing rate. As a result, the world is getting warmer. The year 1990 was the hottest year in the last century. Together with 1991, the years of 1983, 1987, 1988 and 1989 have been measured to be the warmest six years in the last hundred years. The year 1991 was the second warmest year of the past century. The consequences of the rise in temperature is being felt all over the globe the findings of scientific research done in this field reveal that the temperature of the earth is likely to rise from 1.4°C to 5.8°C within a period of 100 years. Unfortunately, the imbalance which we have created between our life and earth is already showing the signs disasters in the form of flood, cyclones, landslides, tsunami, drought, etc. If the imbalance continues to rise, one day this will pose a question mark on the existence of this planet. Carbon dioxide (C02) which is an important constituent of environment is causing a warming effect on the earth’s surface. It increases the evaporation of water into the atmosphere. Since water vapour itself is a greenhouse gas, this causes still more warming. The warming causes more water vapour to be evaporated. The C02 level is expected to rise in future due to ongoing burning of fossil fuels and landuse change. The rate of rise will depend largely on uncertain economic,
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