July 9, 2010 | Scientific American Concerns Spread over Environmental Costs of Producing Shale Gas The extent to which utilities will burn natural gas to slash carbon dioxide emissions tied to global warming is a national issue. But on the ground, where it's being produced, the issues become very local. By _Joel Kirkland_ (http://www.scientificamerican.com/author.cfm?id=2404) and _ClimateWire_ (http://www.scientificamerican.com/author.cfm?id=2308) : See the web-site below: _Concerns Spread over Environmental Costs of Producing Shale Gas_ (http://www.google.com/url?sa=X&q=http://www.scientificamerican.com/artic... hale-gas-concerns&ct=ga&cad=:s1:f2:v0:i0:lt:e2:p2:t1278759102:&cd=bLatCGsz14 E&usg=AFQjCNFw3B88RujfhjvcS_t2OiMqBE1DHA)