Presentation on theme: "Is Natural Gas the Answer?. What is natural gas?"— Presentation transcript:
Is Natural Gas the Answer?
What is natural gas?
Formation of Unconventional Natural Gas Devonian shales (formed in inland seas during the Devonian Period – 350 million years ago)
Where is natural gas found in large concentrations? Domestic Supplies Top 5 natural gas reserves: 1.Texas 2.Louisiana 3.Wyoming 4.Oklahoma 5.Pennsylvania
Where is natural gas found in large concentrations? Global Supplies Top 5 natural gas reserves: 1.Russia 2.Iran 3.Qatar 4.Turkmenistan 5.United States
How do we extract it from the ground? Conventional Natural Gas Drill down into layers of rock with domes of natural gas Gas flows to surface, normally pressurized to increase gas flow
How do we extract it from the ground? Non-Conventional Natural Gas – FRACKING High pressure liquid is forced into shale layers to crack the rocks Sand is inserted to hold the cracks open Methane flows to the surface
What are the environmental problems with extracting Natural Gas? Air pollution Groundwater pollution Land disruption Explosions Fires
What do we use natural gas for besides electricity? 1. Heating 2. Cooking fuel 3. Vehicle Fuel (public busses)
What are the environmental problems with burning natural gas? Methane leaks are worse than carbon dioxide as a greenhouse gas Added carbon dioxide Burned off as waste