| AD | artificial downwelling |
| AIS | automatic identification system |
| ANSI | American National Standards Institute |
| aOIF | artificial ocean iron fertilization |
| AU | artificial upwelling |
| BBNJ | Biodiversity Beyond National Jurisdiction |
| BCP | biological carbon pump |
| C | carbon |
| Ca(HCO3)2 | calcium bicarbonate |
| Ca(OH)2 | portlandite or calcium hydroxide |
| CaAl2Si2O8 | anorthite |
| CAB | coastal area of benefit |
| CaCO3 | calcium carbonate or calcite |
| CaMg(CO3)2 | dolomite |
| CaO | quicklime or calcium oxide |
| CBD | Convention on Biological Diversity |
| CCBS | Climate, Community, and Biodiversity Standards |
| CCS | carbon capture and storage |
| CDR | carbon dioxide removal |
| CH4 | methane |
| CO2 | carbon dioxide |
| CO2 (aq) CO32− | aqueous carbon dioxide carbonate ion |
| CREATE | Carbon Removal, Efficient Agencies, Technology Expertise |
| CWA | Clean Water Act |
| CZMA | Coastal Zone Management Act |
| DA | domoic acid |
| DIC | dissolved inorganic carbon |
| DMS | dimethyl sulfide |
| DOC | dissolved organic carbon |
| DOE | Department of Energy |
| EEZ | Exclusive Economic Zone |
| EIA | environmental impact assessment |
| ENSO | El Niño–Southern Oscillation |
| EPA | Environmental Protection Agency |
| ESA | Endangered Species Act |
| EW | enhanced weathering |
| EZ | euphotic zone |
| Fe | iron |
| Fe2SiO4 | fayalite |
| GHGs | greenhouse gases |
| GO-SHIP | Global Ocean Hydrographic Investigations Program |
| H+ | hydrogen ion |
| H2CO3 | carbonic acid |
| H2O | water |
| HABs | harmful algal blooms |
| HCO3- | bicarbonate |
| HNLC | high nutrient, low chlorophyll |
| IODP | International Ocean Discovery Program |
| IOOS | Integrated Ocean Observing System |
| IUCN | International Union for Conservation of Nature |
| LC/LP | London Convention and London Protocol |
| LNLC | low nutrient, low chlorophyll |
| Mg(OH)2 | brucite |
| Mg2SiO4 | forsterite |
| MgCO3 | manganesite |
| MgO | periclase/magnesia |
| MMPA | Marine Mammal Protection Act |
| MPAs | marine protected areas |
| MPRSA | Marine Protection, Research, and Sanctuaries Act |
| MSFCMA | Magnuson-Stevens Fishery Conservation and Management Act |
| N | nitrogen |
| N2O | nitrous oxide |
| NaOH | sodium hydroxide |
| NBS | nature-based solutions |
| NDC | nationally determined contribution |
| NEPA | National Environmental Policy Act |
| NETs | negative emissions technologies |
| NIMBY | not in my backyard |
| NMFS | National Marine Fisheries Service |
| NMSA | National Marine Sanctuaries Act |
| nOIF | natural ocean iron fertilization |
| NPP | net primary productivity |
| NPSG | North Pacific Subtropical Gyre |
| NRC | National Research Council |
| NSTC | National Science and Technology Council |
| O2 | oxygen |
| OA | ocean alkalinity |
| OAE | ocean alkalinity enhancement |
| OCCAM | Ocean Circulation and Climate Advanced Modeling |
| OCSLA | Outer Continental Shelf Lands Act |
| OF | ocean fertilization |
| OIF | ocean iron fertilization |
| OMF | ocean macronutrient fertilization |
| OOI | Ocean Observatories Initiative |
| OTEC | ocean thermal energy conversion |
| P | phosphorus |
| pCO2 | partial pressure of carbon dioxide |
| PDO | Pacific Decadal Oscillation |
| POC | particulate organic carbon |
| REDD+ | Reducing Emissions from Deforestation and Forest Degradation |
| RHA | Rivers and Harbors Act |
| Si | silica |
| SLO | social license to operate |
| SOD | superoxide dismutase |
| TZ | twilight zone |
| UNCLOS | United Nations Convention on the Law of the Sea |
| UNFCCC | United Nations Framework Convention on Climate Change |
| VCS | Verified Carbon Standard |
| WHOI | Woods Hole Oceanographic Institute |
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