The document discusses various techniques to reduce the environmental footprint of unconventional gas drilling operations, including: 1) Prototype small footprint drilling rigs, multi-well pad drilling, and coiled tubing drilling to minimize land disturbance. 2) Centralized fracturing to hydraulically fracture multiple wells from a single location. 3) Innovative water management techniques like constructed wetland systems to treat produced water on-site. 4) Developing an "EFD scorecard" to measure drilling technologies' performance on issues like air, water, and waste management.