Naveena Sadasivam

U.S. Department of Labor investigations have uncovered hundreds of cases in which oil and gas workers, many involved in dangerous jobs, are being cheated of earnings.

An analysis by an environmental group finds hundreds of cases in which drillers used diesel fuel without obtaining permits and sometimes altered records disclosing they had done so.

The Government Accountability Office says environmental regulators are failing to adequately enforce rules for wells used to dispose of waste from drilling.

Court cases. A governor’s moratorium. Pending health study. A quick guide to the state of fracking in New York.

Frustration and inaction color efforts to enforce the Clean Water Act.

A Pennsylvania gas company offers residents cash to buy protection from any claims of harm.

In Ohio, where gas drilling is booming and toxic waste abundant, legislators acted modestly to address concerns about public safety.

In Pennsylvania, opponents of gas drilling say regulators are slow and unprepared in responding to air quality complaints.

ProPublica surveys some recent research on potential health implications of hydro fracking.

In California, hydrogen-fueled cars are gaining in popularity. Will their safety issues garner greater scrutiny?