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:
Alternate version: GreenFILE in the classic EBSCO user interface (best for exporting more than 50 results or combining saved searches). 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: