Comprehensive coverage of the geosciences. Coverage: 1785-current for North America, 1933-current for the rest of the world.
Covers the world's literature on meteorology, climatology, atmospheric chemistry and physics, physical oceanography, hydrology, glaciology, and related environmental sciences. Coverage: 1974-current.
Coverage: 1896-present. Indexes and abstracts serials, conference proceedings, standards and reports in the physical sciences, electrical engineering & computer science.