Using inorganic carbon measurements from an international survey effort in the 1990s and a tracer-based separation technique, we estimate a global oceanic anthropogenic carbon dioxide (CO2) sink for the period from 1800 to 1994 of 118 +/- 19 petagrams of carbon. The oceanic sink accounts for approximately 48% of the total fossil-fuel and cement-manufacturing emissions, implying that the terrestrial biosphere was a net source of CO2 to the atmosphere of about 39 +/- 28 petagrams of carbon for this period. The current fraction of total anthropogenic CO2 emissions stored in the ocean appears to be about one-third of the long-term potential.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1126/science.1097403 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
In Situ Vivianite Formation in Intertidal Sediments: Ferrihydrite-Adsorbed P Triggers Vivianite Formation.
Environ Sci Technol
December 2024
Soil Chemistry Group, Institute of Biogeochemistry and Pollutant Dynamics, CHN, ETH Zürich, 8092 Zürich, Switzerland.
Coastal sediments are a key contributor to oceanic phosphorus (P) removal, impacting P bioavailability and primary productivity. Vivianite, an Fe(II)-phosphate mineral, can be a major P sink in nonsulfidic, reducing coastal sediments. Despite its importance, vivianite formation processes in sediments remain poorly understood.
View Article and Find Full Text PDFBlueprinting the ecosystem health index for blue carbon ecotones.
iScience
December 2024
Center for Ecosystem Design and fuTuRE EcoSystems Lab (TREES), Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.
Blue carbon ecotones (BCEs) play a critical role in regulating abiotic and biotic ecological fluxes underpinning services which are also crucial for the protection of the land-ocean function. Here, we proposed a Benefit-Pressure-Transformation Risk model (BPT) to calculate the Ecosystem Health Index (EHI) for mangrove, salt marsh, and seagrass as core BCEs globally (at a resolution of 1° × 1 °lat-long), based on habitat structure, species morphological features and vulnerability, niche overlap, nature and human pressures, and ecosystem services. Our assessments identify that around 20% of BCEs as vulnerable globally.
View Article and Find Full Text PDFShellfish and algae: Climate change mitigation through green and valuable foods.
Sci Total Environ
December 2024
School of Ecology, Environment, and Resources, Guangdong University of Technology, Guangzhou 510006, China.
Food safety issues have become increasingly severe, while the global population continues to grow. Shellfish and algae (SA), as sustainable and environmentally friendly foods, have great significance in helping countries worldwide achieve the goal of carbon neutrality. However, there is still a gap in quantitatively evaluating the carbon neutrality of SA farming.
View Article and Find Full Text PDFChanges in soluble sugars and the expression of sugar transporter protein genes in strawberry crowns responding to infection.
Physiol Mol Biol Plants
November 2024
Shanghai Key Laboratory of Protected Horticultural Technology, Forestry and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences (SAAS), Jinqi Rd 1000#, Fengxian District, Shanghai, 201403 China.
Unlabelled: Strawberry ( × ) production has been greatly hampered by anthracnose crown rot caused by . Crown, the modified stem of strawberry, is a sink organ involved in sugar allocation. Some Sugar Transport Proteins (STPs) are involved in competition for sugars between pathogen and host.
View Article and Find Full Text PDFLow latency carbon budget analysis reveals a large decline of the land carbon sink in 2023.
Natl Sci Rev
December 2024
Laboratoire des Sciences du Climat et de l'Environnement, University Paris Saclay CEA CNRS, Gif sur Yvette 91191, France.
In 2023, the CO growth rate was 3.37 ± 0.11 ppm at Mauna Loa, which was 86% above that of the previous year and hit a record high since observations began in 1958, while global fossil fuel CO emissions only increased by 0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!