Paleoatmospheres and Climates.- Biogeochemical Cycles of Carbon on a Hierarchy of Time Scales.- Ice Core Records as a Key to Understanding the History of Atmospheric Trace Gases.- Ancient Ice Air Content of the Vostok Ice Core.- Late Jurassic Paleoclimate of Pangea Based on Results from a General Circulation Model.- Distributions, Reactions, Sources, and Sinks.- The Sensitivity of the Global Atmosphere to Anthropogenic Methane Sources.- A Time-Dependent Two Dimensional-Model Study of the Trend in Atmospheric Methane.- The Influence of Tropical Biomass Burning on Climate and the Atmospheric Environment.- Long-Term Effects of Fossil-Fuel-Burning and Deforestation on Levels of Atmospheric CO2.- Models of Oceanic and Terrestrial Sinks of Anthropogenic CO2: A Review of the Contemporary Carbon Cycle.- Terrestrial Systems.- Agriculture, the Global Nitrogen Cycle, and Trace Gas Flux.- Sulfur Gas Emissions from African Savanna-Burning.- Methane Production and Uptake in Some Terrestrial Ecosystems of the Former USSR.- Emission of N-Oxides from Acid Irrigated and Limed Soils of a Coniferous Forest in Bavaria.- Production of Methane and Nitrous Oxide by Organic Soils within a Northern Hardwood Forest Ecosystem.- Effect of Nitrogen Fertilizer and Nitrification Inhibitors on Methane and Nitrous Oxide Fluxes in Irrigated Corn.- Nitric and Nitrous Oxide Evolution from Managed Subtropical Grassland.- Mechanisms Controlling Methane Emission from Wetland Rice Fields.- Mechanism of Methane Transport by Rice Plants.- Spatial and Temporal Variations of Methane Flux from a Rice Paddy Field.- Soil Water Content and the Ratio of Nitrous Oxide to Nitric Oxide Emitted from Soil.- Respiration of Cultivated Histosols in Field and Laboratory Measurements and the Relationships between Respiration andSoil Properties.- Emission of Biogenic Sulfur Gases from Rice Paddies in Japan.- Emissions of Ammonia, Nitrous Oxide, and Methane from Cattle Slurry.- Sources and Migration of Methane-Rich Gas in Sedimentary Rocks of the Exmouth Plateau: Northwest Australian Continental Margin.- Boreal Systems.- Methane Emissions from Northern High-Latitude Wetlands.- Studies of Permafrost and Gas-Hydrates as Possible Sources of Atmospheric Methane at High Latitudes.- Aquatic Systems.- The Oceanic Global Methane Cycle.- Global Carbon Dioxide and Methane Fluxes from Shallow-Water Marine Carbonate Frameworks.- Effects of Seagrass Die-Off on Benthic Fluxes and Porewater Concentrations of ? CO2, ? H2S, and CH4 in Florida Bay Sediments.- The Oceanic Distribution of Methane and Its Flux to the Atmosphere over Southern California Waters.- The Carbon Isotope Biogeochemistry of Methane Production in Anoxic Sediments: 1. Field Observations.- The Carbon Isotope Biogeochemistry of Methane Production in Anoxic Sediments: 2. A Laboratory Experiment.- Oxidation of Methane by Deep-Sea Mytilids in the Gulf of Mexico.- Seasonal Variations in the Isotopic Composition of Methane Associated with Aquatic Macrophytes.- Nitrogen Fixation and Denitrification in the Intertidal and Subtidal Environments of Tomales Bay, California.- The Influence of Glycine Betaine on Dimethyl Sulfide and Dimethylsulfoniopropionate Concentrations in Seawater.- Sulfur Cycling in Laminated Marine Microbial Ecosystems.- Biological Consumption of Dimethyl Sulfide in the Marine Euphotic Zone: Results of Radioisotope Experiments.- Aspects of the Biogeochemistry of Methane in Mono Lake and the Mono Basin of California.- Biogenesis and Catabolism.- Bacterial Transformations of Organic Sulfur Compounds in Marine Environments.-Formation of Dimethylsulfide and Methanethiol from Methoxylated Aromatic Compounds and Inorganic Sulfide by Newly Isolated Anaerobic Bacteria.- Catabolism of Dimethylsulfide and Methane Thiol by Methylotrophic Methanogens.- Bromoperoxidases: Their Role in the Formation of HOBr and Bromoform by Seaweeds.- Microbiological Transformations of Low-Molecular-Weight Carbon Compounds in the Deep Subsurface.- Biological and Chemical Transformations of Halogenated Aliphatic Compounds in Aquatic and Terrestrial Environments.
