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02 Petroleum
54 Environmental Sciences
2
Arctic Ocean
2
Arctic Regions
Beaufort Sea
2
Energy Sources
2
Polar Regions
2
Seas
2
020900 -- Petroleum-- Environmental Aspects
1
520200 -- Environment
1
540210 -- Environment
1
560303 -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
1
63 Radiation
1
Alaska
1
Algae
1
And Other Environ. Pollutant Effects On Living Orgs. And Biol. Mat
1
Aquatic Ecosystems
1
Aquatic Organisms
1
Aquatic-- Basic Studies-- (1990-)
1
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
1
Biological Effects
1
Biomass
1
Carbon 13
1
Carbon Isotopes
1
Coastal Regions
1
Cryosphere
1
Data
1
Data Forms
1
Developed Countries
1
Ecosystems
1
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