Harvey Thorleifson, the Director of the Minnesota Geological Survey and President Elect of the Association of American State Geologists (AASG), moderated a briefing to the U.S. Congress on June 8 in the Rayburn House Office Building. The event was filmed by the American Geophysical Union and posted on YouTube, with the following summary:
Hydraulic fracturing is the process of injecting wells with water, sand, and chemicals at very high pressure to produce unconventional oil and natural gas. These resources pose both opportunities and challenges. Join us to learn how USGS and its partners provide information so policy makers and resource managers can make decisions based on sound science.
It is also added to the State Geologists YouTube channel.