The principal database for identifying scholarly journal articles in U.S. history is America: History and Life:
For journal articles on the history of Central and South America, use Historical Abstracts:
CAB Abstracts is a bibliographic database covering research and development literature in the fields of agriculture, forestry, aspects of human health, human nutrition, animal health, and the management and conservation of natural resources from 1910 to date. Also available on the CABI Digital Library platform.
Web of Science indexes core journal articles, conference proceedings, data sets, and other resources in the sciences, social sciences, arts, and humanities.
GreenFILE offers well-researched but accessible information covering all aspects of human impact on the environment. Its collection of scholarly, government and general-interest titles include content on the environmental effects of individuals, corporations and local/national governments, and what can be done on each level to minimize negative impact. Topics covered include global warming, green building, pollution, sustainable agriculture, renewable energy, recycling, and more. GreenFILE is multidisciplinary by nature and draws on the connections between the environment and a variety of disciplines such as agriculture, education, law, health and technology.
For more alternative press sources, see our Guide to the Alternative Press: