Science Library

The SciPol Science Library provides quick, straightforward explanations of science topics that come up frequently in policy. Start here to learn more about the fundamental science underlying the latest policy developments.

Hydrology and the Earth's Water Cycle

Explains the hydrologic cycle - the continual, repeated process by which water moves from the earth's surface (including the oceans) to the atmosphere and back to the land and oceans. 

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Hydrology and the Earth's Water Cycle

Explains the hydrologic cycle - the continual, repeated process by which water moves from the earth's surface (including the oceans) to the atmosphere and back to the land and oceans. 

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Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT)

Assesses concussions by providing pre- and post-head injury evaluations and informs return-to-play readiness. 

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Levels of Vehicle Automation

Levels of vehicle automation established by SAE.

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Post-Traumatic Stress Disorder (PTSD)

A disorder in which trauma exposure affects the brain to produce disruptive symptoms including negative mood alterations, agitation, and difficulty sleeping.

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Protected Areas of the United States

Political history of national protected lands in the United States, from the National Park System to National Marine Protected Areas.

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Sensors for Automated Vehicles

Describes the key sensor technologies used by automated vehicles for navigation.

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Solar Power

Describes the history, implementation, science, and potential of solar energy. 

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Stream Ecology

Details the importance of ecosystem services provided by streams and the ways in which human activity can negatively affect stream health.

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The Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative

Distributes financial awards to support research aimed at bolstering our understanding of the human brain to better treat, prevent, and cure disorders of the brain.

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Unconventional Natural Gas

Describes the trends, extraction, distribution, and environmental impacts of unconventional natural gas , which includes shale gas, tight gas, coalbed methane, and gas-to-liquids.

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Unmanned Aerial Systems Traffic Management

The integrated network of sensors, user interfaces, and decision-making programs to ensure the safe and efficient operation of unmanned aerial systems.

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