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ATMOSPHERE (4)
aerosols , atmospheric radiation , atmospheric water vapor , atmospheric winds , precipitation ...
OCEANS (3)
marine sediments , ocean optics , ocean temperature , salinity/density ...
BIOLOGICAL CLASSIFICATION (34)
animals/invertebrates , animals/vertebrates , bacteria/archaea , fungi , plants ...
PALEOCLIMATE (2)
land records , ocean/lake records ...
BIOSPHERE (27)
aquatic ecosystems , ecological dynamics , terrestrial ecosystems , vegetation ...
SOLID EARTH (4)
geochemistry , geomagnetism , geomorphic landforms/processes , rocks/minerals/crystals , tectonics ...
HUMAN DIMENSIONS (10)
environmental impacts , human settlements , infrastructure , population , social behavior ...
SUN-EARTH INTERACTIONS (1)
ionosphere/magnetosphere dynamics , solar activity , solar energetic particle flux ...
LAND SURFACE (2)
soils ...

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