1/21/2013: Auditor general peering into DEP's files; fracking now powered by nat gas

- New Auditor General Eugene DePasquale will begin a review this week of the DEP's water regulation, testing and enforcement program. (Post-Gazette)

- Hydraulic fracturing itself is increasingly being powered by natural gas. (Associated Press)

- A team of toxicologists from the University of Pennsylvania is leading a national effort to study the health effects of fracking. (New York Times)

- And New Jersey's moratorium on hydraulic fracturing expired on Thursday. (Newark Star-Ledger)