C:
Cheetah: Science Reference Guide - A research and finding aid from the Science Reference Service at the Library of Congress [U.S. Library of Congress (LOC)]

E:
Earth Day: Selected Resources - Science Reference Guide - Finding guide from the Library of Congress, Science Reference Section [U.S. Library of Congress (LOC)]

G:
Global Warming & Climate Change: Science Tracer Bullet - updated Feb. 2011 - Finding guide from the Library of Congress, Science Reference Service [U.S. Library of Congress (LOC)]

H:
Health Risks of Atomic Bomb Exposure - Webcast of a presentation by Human geneticist William Jack Schull, outlining the health effects of exposure to atomic bomb radiation. [U.S. Library of Congress (LOC)]

R:
Reduce, Reuse, Recycle -- Quick Guide to Resources - Finding aid from the Library of Congress, Science Reference Service [U.S. Library of Congress (LOC)]

T:
The Cheetah: A Race for Survival. Webcast - A Webcast of a presentation by Dr. Laurie Marker. She is the Founder and Executive Director of the Cheetah Conservation Fund, headquartered in the Republic of Namibia. [U.S. Library of Congress (LOC)]

U:
USGS Biocomplexity Thesaurus - A collection of biodiversity terms and their relationships, in the areas of Aquatic Sciences and Fisheries, Life Sciences, Pollution, Sociology, Ecotourism , and Fire Science. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), Core Science Analytics & Synthesis Program]

United States Global Change Research Program - Coordinates and integrates federal research on changes in the global environment and their implications for society. [Multiple agencies involved]