Today open cast mining has become more preferable in many places because it is more economic to blow off an area and extract the resources than underground tunnel mining which involves accurate mining skills and greater investment to assure safety.
Open cast coal mining at Jharia
November 19, 2010
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Nature | Tagged: Black, Carbon, Carbon Foot print., CO2, Coal, Colliery, Deforestation, Devastation, Energy, Mining, Open Cast Mining, Pit Mining, Power | 
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Posted by arunavadatta
Changing Scenario,Hundreds Windmills at Kanyakumari!
November 18, 2010
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Posted by arunavadatta
arunava's blog 