Fracking linked to increased methane in water

The video discusses a study linking shale gas extraction, or fracking, to methane contamination in drinking water in northeast Pennsylvania. It highlights that methane concentrations are 17 times higher in wells within a kilometer of active gas drilling. However, the health impacts of consuming water with high methane levels remain unclear.

What is the primary environmental concern associated with shale gas extraction mentioned in the study?

• Deforestation

• Noise pollution

• Air pollution

• Methane contamination in drinking water

Which region is specifically mentioned in the study regarding methane contamination?

• Northeast Pennsylvania

• Central California

• Northwest Ohio

• Southwest Texas

How much higher were methane concentrations found in wells near active drilling sites compared to others?

• 5 times higher

• 10 times higher

• 17 times higher

• 20 times higher

Within what distance from active gas drilling sites were higher methane concentrations observed?

• 500 meters

• 1 kilometer

• 2 kilometers

• 5 kilometers

What is still unclear about the presence of high methane levels in drinking water?

• The effect on agriculture

• The source of methane

• The health impacts

• The cost of water treatment