Rebalancing Regional and Remote Australia: A vision for a global carbon sink while creating sustainable communities DOI Creative Commons
Alberto Troccoli, Roger Stone, Ugo Bardi

et al.

Environmental Research Letters, Journal Year: 2024, Volume and Issue: 19(11), P. 111003 - 111003

Published: Sept. 10, 2024

Abstract This paper introduces a visionary strategy, Rebalancing Regional and Remote Australia . It aims at transforming into significant global carbon sink by sequestering 4 gigatonne (Gt) of CO 2 equivalent annually, leveraging about 25% the nation’s landmass. Addressing unique challenges Australia’s arid climate, plan employs innovative, proven solutions in energy, water, agriculture, including agrivoltaics, to enhance sustainability across diverse environmental socioeconomic contexts. A central pillar is creation sustainable regional remote communities. Designed for scalability, it begins with pilot community 100 000 residents, showcasing initiative’s feasibility potential return on investment. Beyond its objectives, presents substantial business opportunities, positioning as leader efforts. Through collaborative innovation, offers model national international action, highlighting imperative comprehensive strategies that promote economic, environmental, social advancement.

Language: Английский

Global carbon balance of the forest: satellite-based L-VOD results over the last decade DOI Creative Commons
Jean‐Pierre Wigneron, Philippe Ciais, Xiaojun Li

et al.

Frontiers in Remote Sensing, Journal Year: 2024, Volume and Issue: 5

Published: May 10, 2024

Monitoring forest carbon (C) stocks is essential to better assess their role in the global balance, and model predict long-term trends inter-annual variability atmospheric CO2 concentrations. On a national scale, inventories (NFIs) can provide estimates of stocks, but these are only available certain countries, limited by time lags due periodic revisits, cannot spatially continuous mapping forests. In this context, remote sensing offers many advantages for monitoring above-ground biomass (AGB) on scale with good spatial (50–100 m) temporal (annual) resolutions. Remote has been used several decades monitor vegetation. However, traditional methods AGB using optical or microwave sensors affected saturation effects moderately densely vegetated canopies, limiting performance. Low-frequency passive less effects: occurs at levels around 400 t/ha L-band (frequency 1.4 GHz). Despite its coarse resolution order 25 km × km, method based L-VOD (vegetation depth L-band) index recently established itself as an approach annual variations continental scale. Thus, applied continents biomes: tropics (especially Amazon Congo basins), boreal regions (Siberia, Canada), Europe, China, Australia, etc. no reference study yet published analyze detail terms capabilities, validation results. This paper fills gap presenting physical principles calculation, analyzing performance reviewing main applications tracking balance vegetation over last decade (2010–2019).

Language: Английский

Citations

13
Modelling changes in vegetation productivity and carbon balance under future climate scenarios in southeastern Australia DOI
Bin Wang, Benjamin Smith, Cathy Waters

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 924, P. 171748 - 171748

Published: March 15, 2024

Language: Английский

Citations

5
From global to national GHG budgets: The REgional carbon cycle assessment and processes-3 (RECCAP3) DOI Creative Commons
Josep G. Canadell, Benjamin Poulter, Ana Bastos

et al.

National Science Review, Journal Year: 2025, Volume and Issue: 12(4)

Published: Feb. 7, 2025

Language: Английский

Citations

0
Aotearoa New Zealand’s marine carbon cycle in a changing climate – Current understanding and future directions DOI Creative Commons
Scott D. Nodder, Cliff S. Law, Erik Behrens

et al.

New Zealand Journal of Marine and Freshwater Research, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 44

Published: Feb. 13, 2025

The marine system plays a critical role in the global climate cycle, as major control of atmospheric carbon dioxide (CO2). Marine primary production (photosynthesis) and remineralisation organic (respiration, degradation) determine amount CO2 sequestered sediments deep-water environments on century to millennial timescales. stocks fluxes cycle are susceptible change impacts other anthropogenic activities that modify key processes. Oceanographic studies Aotearoa New Zealand's Exclusive Economic Zone (NZ EEZ) Territorial Seas over past decades have provided broad knowledge across complex dynamic seascape, but there remain fundamental gaps limit identification response present future threats. In particular, several areas EEZ been under-sampled currently insufficient data establish baselines variability for cycle. We recommend new observational technologies ocean modelling applications be fully developed utilised enable development robust predictive capability our ocean's human-induced perturbations. Future focus oceanic nature-based solutions accelerate uptake will require improved NZ's EEZ.

Language: Английский

Citations

0
Looking beyond the trees for carbon storage DOI
Josep G. Canadell

Science, Journal Year: 2025, Volume and Issue: 387(6740), P. 1252 - 1253

Published: March 20, 2025

Nonliving organic matter could create more stable carbon reservoirs

Language: Английский

Citations

0
The North American Greenhouse Gas Budget: Emissions, Removals, and Integration for CO2, CH4, and N2O (2010–2019): Results From the Second REgional Carbon Cycle Assessment and Processes Study (RECCAP2) DOI Creative Commons
Benjamin Poulter, Guillermo N. Murray-Tortarolo, Daniel J. Hayes

et al.

Global Biogeochemical Cycles, Journal Year: 2025, Volume and Issue: 39(4)

Published: April 1, 2025

Abstract Accurate accounting of greenhouse‐gas (GHG) emissions and removals is central to tracking progress toward climate mitigation for monitoring potential climate‐change feedbacks. GHG budgeting reporting can follow either the Intergovernmental Panel on Climate Change methodologies National Greenhouse Gas Inventory (NGHGI) or use atmospheric‐based “top‐down” (TD) inversions process‐based “bottom‐up” (BU) approaches. To help understand reconcile these approaches, Second REgional Carbon Cycle Assessment Processes study (RECCAP2) was established quantify carbon dioxide (CO 2 ), methane (CH 4 ) nitrous oxide (N O), ten‐land five‐ocean regions 2010–2019. Here, we present results North American land region (Canada, United States, Mexico, Central America Caribbean). For 2010–2019, NGHGI reported total net‐GHG 7,270 TgCO ‐eq yr −1 compared TD estimates 6,132 ± 1,846 BU 9,060 898 . Reconciling differences between NGHGI, approaches depended (a) lateral fluxes CO along land‐ocean‐aquatic continuum (LOAC) trade, (b) correcting land‐use loss‐of‐additional‐sink capacity (LASC), (c) avoiding double counting inland water CH emissions, (d) adjusting area match definition managed‐land proxy. Uncertainties remain from inland‐water evasion, conversion nitrogen fertilizers N O, less‐frequent non‐Annex‐1 countries. The RECCAP2 framework plays a key role in reconciling independent GHG‐reporting support policy commitments while providing insights into biogeochemical processes responses change.

Language: Английский

Citations

0
Analysis of the Spatiotemporal Evolution of Carbon Budget and Carbon Compensation Zoning in the Core Area of the Yangtze River Delta Urban Agglomeration DOI Creative Commons
Yuxin Tang, Ran Wang, Hui Ci

et al.

Land, Journal Year: 2024, Volume and Issue: 13(6), P. 747 - 747

Published: May 27, 2024

As a world-class urban agglomeration, the Yangtze River Delta agglomeration is significant for China’s carbon neutrality strategy when calculating budget and dividing compensation zones. This paper focused on 129 county-level cities in core area of 2000–2020 using night-time light data analyzing evolution spatiotemporal patterns. On this basis, zoning model was constructed K-means algorithm; were divided into different zones after combining with main functional The results showed that (1) emissions increased, overall stabilization 2012. distribution high emission areas evolved from “core-periphery” pattern “Z-shaped” pattern. Ecological sinks continuous decline, southern performing better than northern ones. (2) study deficit, gradually widening exhibiting an unbalanced spatial characterized by “high south low north” (3) Eleven types designated overlaying Low-carbon development suggestions proposed each zone type.

Language: Английский

Citations

3
Small wetland‐fringed estuaries deliver disproportionately large carbon loads to the ocean DOI Creative Commons
Gloria Reithmaier, Damien T. Maher, Ceylena Holloway

et al.

Limnology and Oceanography, Journal Year: 2024, Volume and Issue: 69(9), P. 2229 - 2242

Published: Aug. 28, 2024

Abstract Previous estimates of dissolved carbon export from estuaries focused on larger systems in the Northern Hemisphere, with little data for smaller tropical often fringed by intertidal wetlands. We investigated lateral (outwelling) and transformation rates organic (DOC), inorganic (DIC), total alkalinity (TA) as well CO 2 emissions 18 diverse Australian estuaries. Most acted net sources DOC (72%), DIC (83%), TA (50%). On average, exported 120 ± 55 344 150 mmol m −2 catchment yr −1 DIC, respectively. Estuarine (33 20 estuary d ) equalled 13% 16% export. Carbon positively correlated runoff, rain, wetland cover, negatively area. Mangroves saltmarshes cover < 1% all catchments but can contribute 46% 11% 67% to ocean. Upscaling our observations, 2.8 2.2 TgC DOC, 8.1 6.2 0.7 0.6 Tmol TA. Small (< 10 ha) making up 70% accounting 18% freshwater flow provided 27% Overall, small highly productive wetlands are hotspots exports should be considered marine budgets.

Language: Английский

Citations

1
Rebalancing Regional and Remote Australia: A vision for a global carbon sink while creating sustainable communities DOI Creative Commons
Alberto Troccoli, Roger Stone, Ugo Bardi

et al.

Environmental Research Letters, Journal Year: 2024, Volume and Issue: 19(11), P. 111003 - 111003

Published: Sept. 10, 2024

Abstract This paper introduces a visionary strategy, Rebalancing Regional and Remote Australia . It aims at transforming into significant global carbon sink by sequestering 4 gigatonne (Gt) of CO 2 equivalent annually, leveraging about 25% the nation’s landmass. Addressing unique challenges Australia’s arid climate, plan employs innovative, proven solutions in energy, water, agriculture, including agrivoltaics, to enhance sustainability across diverse environmental socioeconomic contexts. A central pillar is creation sustainable regional remote communities. Designed for scalability, it begins with pilot community 100 000 residents, showcasing initiative’s feasibility potential return on investment. Beyond its objectives, presents substantial business opportunities, positioning as leader efforts. Through collaborative innovation, offers model national international action, highlighting imperative comprehensive strategies that promote economic, environmental, social advancement.

Language: Английский

Citations

1