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2 documents

Natural Gas Liquids: The Unknown Hydrocarbons
Congressional Research Service · 2018-10-26 · Reports · 7,276 words · PDF available
The U.S. oil and natural gas industries have gone through a “renaissance” of production. Technological improvements in hydraulic fracturing and horizontal drilling have unlocked enormous oil and natur...
Invasive Species: A Brief Overview
Congressional Research Service · 2018-10-26 · Resources · 1,139 words · PDF available
An invasive species is a nonnative (also known as an alien) species that does or is likely to cause economic or environmental harm or harm to human health. The human-mediated spread of species has occ...