SSRN Electronic Journal, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
Language: Английский
SSRN Electronic Journal, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
Language: Английский
BMJ, Journal Year: 2025, Volume and Issue: unknown, P. q2584 - q2584
Published: Jan. 10, 2025
dose" of anxiety is needed to awaken transformative action on climate change?
Language: Английский
Citations
1Earth system science data, Journal Year: 2025, Volume and Issue: 17(3), P. 965 - 1039
Published: March 14, 2025
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize datasets methodologies quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC) data bookkeeping models. Atmospheric concentration measured directly, its growth rate (GATM) computed annual changes concentration. The net uptake by ocean (SOCEAN, called sink) estimated with biogeochemistry models observation-based fCO2 products (fCO2 fugacity CO2). land (SLAND, dynamic vegetation Additional lines evidence sinks provided atmospheric inversions, oxygen measurements, Earth system sum all sources results imbalance (BIM), measure imperfect incomplete understanding contemporary cycle. All uncertainties reported as ±1σ. For year 2023, EFOS increased 1.3 % relative 2022, fossil at 10.1 ± 0.5 GtC yr−1 (10.3 when carbonation sink not included), ELUC was 1.0 0.7 yr−1, for total emission (including 11.1 0.9 (40.6 3.2 GtCO2 yr−1). Also, GATM 5.9 0.2 (2.79 0.1 ppm yr−1; denotes parts per million), SOCEAN 2.9 0.4 SLAND 2.3 near-zero BIM (−0.02 averaged over 2023 reached 419.31 ppm. Preliminary 2024 suggest an increase +0.8 (−0.2 1.7 %) globally 2.87 ppm, reaching 422.45 52 above pre-industrial level (around 278 1750). Overall, mean trend consistently period 1959–2023, overall imbalance, although discrepancies up around 1 persist representation semi-decadal variability fluxes. Comparison estimates multiple approaches observations shows following: (1) persistent large uncertainty estimate emissions, (2) low agreement between different methods magnitude flux northern extra-tropics, (3) discrepancy sink. This living-data update documents applied this most recent well evolving community presented work available https://doi.org/10.18160/GCP-2024 (Friedlingstein et al., 2024).
Language: Английский
Citations
1Sustainable Earth Reviews, Journal Year: 2025, Volume and Issue: 8(1)
Published: Jan. 20, 2025
Language: Английский
Citations
0Earth System Dynamics, Journal Year: 2025, Volume and Issue: 16(1), P. 275 - 292
Published: Feb. 7, 2025
Abstract. Warm-water coral reefs are facing unprecedented human-driven threats to their continued existence as biodiverse functional ecosystems upon which hundreds of millions people rely. These impacts may drive past critical thresholds, beyond the system reorganises, often abruptly and potentially irreversibly; this is what Intergovernmental Panel on Climate Change (IPCC, 2022) define a tipping point. Determining point thresholds for reef requires robust assessment multiple stressors interactive effects. In perspective piece, we draw recent global revision initiative (Lenton et al., 2023a) literature search identify summarise diverse range interacting that need be considered determining warm-water ecosystems. Considering observed projected stressor impacts, endorse revision's conclusion mean surface temperature (relative pre-industrial) threshold 1.2 °C (range 1–1.5 °C) long-term atmospheric CO2 concentrations above 350 ppm, while acknowledging comprehensive stressors, including ocean warming response dynamics, overshoot, cascading have yet sufficiently realised. already been exceeded, therefore these systems in an overshoot state reliant policy actions bring levels back within limits. A fuller likely further lower most cases. Uncertainties around points such crucially important underline imperative and, case knowledge gaps, employing precautionary principle favouring lower-range values.
Language: Английский
Citations
0Resources Conservation and Recycling, Journal Year: 2025, Volume and Issue: 218, P. 108237 - 108237
Published: March 10, 2025
Language: Английский
Citations
0Science, 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
0American Journal of Climate Change, Journal Year: 2025, Volume and Issue: 14(01), P. 61 - 74
Published: Jan. 1, 2025
Language: Английский
Citations
0Global Change Biology, Journal Year: 2024, Volume and Issue: 30(12)
Published: Dec. 1, 2024
In 2024, wildfires burned a record number of forests participating in California's forest offset program, exposing the danger relying on to slow climate change. While California maintains reserve credits—known as “buffer pool”—that is intended safeguard against such carbon losses, growing frequency, and severity threatens undermine program's environmental goals.
Language: Английский
Citations
1Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(24)
Published: Dec. 12, 2024
Abstract Marine heatwaves (MHWs) have devastating effects on ecosystems. Yet a global assessment of the regional impacts MHWs sea‐air exchange is missing. Here, we analyze 30 observation‐based flux data sets from 1990 to 2019. Globally, oceanic uptake reduced by 8% (3%–19% across sets) during MHWs. Regionally, equatorial Pacific experiences 31% (3%–49%) reduction in release and often coincide with extreme anomalies this region. The decreases 29% (19%–37%) 14% (5%–21%) low‐to‐mid latitude Northern Southern Hemisphere, respectively. Reduced dissolved inorganic carbon tropics weakens outgassing, while high ocean temperatures diminish latitudes. In subpolar North Ocean, enhanced occurs MHWs, but uncertainties p limit comprehensive these regions.
Language: Английский
Citations
1SSRN Electronic Journal, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
Language: Английский
Citations
0