24 October 2012
Could shale gas provide the answer to global energy concerns? There are vast untapped resources in Europe, but fracking, the controversial method of extraction, could prove to be the stumbling block as Vasili Nicoletopoulos* explains
01 October 2012
According to the latest US Geological Survey data, Wisconsin ranked third in total US industrial silica sand production at 3.39m tonnes in 2010, accounting for 11.3%, after Illinois and Texas. But within the silica sand sector, the state is leading in frac sand production.