2012g-978 572 agricultureandenergy atmospheric biocompatibility biophysics carbon carboncycle(biogeochemistry) carbonsequestration congresses continentalmargins earthsciences ecology environmentalaspects environmentalconditions geochemistry geoecology/naturalprocesses geography greenhouseeffect greenhousegases lifesciences methods motorfuels nanoparticles nanotechnology nanotubes nutrientcycles ocean-atmosphereinteraction oceanography qt25 renewableenergysources sci009000 science soils standards toxicity toxicology unitedstates