Academic Search Complete provides full text scholarly publications and full text journals for all academic areas of study. It covers the sciences, social sciences, arts, and humanities.
Find articles in scientific and technical databases
The Earth, Atmospheric & Aquatic Science Database includes scholarly journals, trade and industry journals, magazines, technical reports, conference proceedings, and government publications.
"U.S. National Library of Medicine's premier bibliographic database that contains approximately 13 million references to journal articles in life sciences with a concentration on biomedicine." Try this for environmental problems resulting from medical and biomedical waste.
Compendex contains bibliographic citations and abstracts from engineering journals and conference proceedings. It also includes Engineering Index Backfile (1884-1969).