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|Title:||Global Environmental Challenge|
|Authors:||Khan, Zulfequar Ahmad|
|Abstract:||The ill effects of global warming are all too visible today. Do we keep on plundering the earth for our material benefits or make sure we protect it for our future generations? The world climate has always been highly variable. Many changes are driven by natural factors, but others are now the result of a single species (human beings), which is driving a significant shift in the global climate. People have been influencing the biosphere for at least 8000 years, since the invention of agriculture. But for several decades, it is the very composition of the global atmosphere that they have been modifying. We now know that there has indeed been a major change in climate since the arrival of people on earth, and 18000 years ago, the climate was radically different from what it is today.|
|Appears in Collections:||SR Vol.47(09) [September 2010]|
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