By Barbara Kessler
Green Right Now
Congressmen Henry A. Waxman (D-Calif.) and Edward Markey (D-Mass.) are asking for more information about the chemicals used to extract natural gas wells.
[caption id="attachment_9221" align="alignright" width="142" caption="Urban gas well outside a mall in North Texas"]
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Today, the two lawmakers sent letters to eight oil and natural gas companies requesting details of the ingredients used in hydraulic fracturing, a method of accessing natural gas deposits by blasting or fracturing the rock with a high pressure injection of water treated with chemicals.


