Marine litter and climate change: Inextricably connected threats to the world's oceans

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 837, P. 155709 - 155709

Published: May 4, 2022

Language: Английский

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Tightened 1D/3D carbon heterostructure infiltrating phase change materials for solar–thermoelectric energy harvesting: Faster and better

Carbon Energy, Journal Year: 2023, Volume and Issue: 5(6)

Published: Jan. 31, 2023

Abstract Extensive use of thermal energy in daily life is ideal for reducing carbon emissions to achieve neutrality; however, the effective collection a major hurdle. Thermoelectric (TE) conversion technology based on Seebeck effect and storage phase change materials (PCMs) represent smart, feasible, research‐worthy approaches overcome this However, integration multiple sources freely existing environment output electrical simultaneously still remains huge challenge. Herein, three‐dimensional (3D) nanostructured metal–organic frameworks (MOFs) are situ nucleated grown onto nanotubes (CNTs) via coordination bonding. After calcination, prepared core–shell structural CNTs@MOFs transformed into tightened 1D/3D heterostructure loading Co nanoparticles efficient solar–thermoelectric harvesting. Surprisingly, corresponding composite PCMs show record‐breaking solar–thermal efficiency 98.1% due local surface plasmon resonance nanoparticles. Moreover, our designed all‐in‐one also capable creating an potential 0.5 mV without TE generator. This promising approach can store simultaneously, providing new direction design advanced multifunctional utilization.

Language: Английский

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Climate-driven connectivity loss impedes species adaptation to warming in the deep ocean

Nature Climate Change, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Language: Английский

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Diazotrophy as a key driver of the response of marine net primary productivity to climate change

Biogeosciences, Journal Year: 2022, Volume and Issue: 19(17), P. 4267 - 4285

Published: Sept. 9, 2022

Abstract. The impact of anthropogenic climate change on marine net primary production (NPP) is a reason for concern because changing NPP will have widespread consequences ecosystems and their associated services. Projections by the current generation Earth system models suggested decreases in global response to future change, albeit with very large uncertainties. Here, we make use two versions Institut Pierre-Simon Laplace Climate Model (IPSL-CM) that simulate divergent responses similar high-emission scenarios 21st century identify nitrogen fixation as main driver these responses. Differences way N parameterised biogeochemical component PISCES (Pelagic Interactions Scheme Carbon Ecosystem Studies) IPSL-CM lead N-fixation rates are either stable or double over course century, resulting decreasing increasing NPP, respectively. An evaluation model does not help constrain projection However, more comprehensive version PISCES, variable nitrogen-to-phosphorus ratios well revised parameterisation temperature sensitivity fixation, suggests only moderate changes globally averaged century. This leads line model-mean recent multi-model intercomparison. Lastly, despite contrasting trends all our significant reductions planktonic biomass. projected plankton biomass may be robust indicator than potential across models.

Language: Английский

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Drivers of change in Arctic fjord socio-ecological systems: Examples from the European Arctic

Cambridge Prisms Coastal Futures, Journal Year: 2023, Volume and Issue: 1

Published: Jan. 1, 2023

Abstract Fjord systems are transition zones between land and sea, resulting in complex dynamic environments. They of particular interest the Arctic as they harbour ecosystems inhabited by a rich range species provide many societal benefits. The key drivers change European (i.e., Greenland, Svalbard, Northern Norway) fjord socio-ecological reviewed here, structured into five categories: cryosphere (sea ice, glacier mass balance, glacial riverine discharge), physics (seawater temperature, salinity, light), chemistry (carbonate system, nutrients), biology (primary production, biomass, richness), social (governance, tourism, fisheries). data available for past present state these drivers, well future model projections, analysed companion paper. Changes to two at base most interactions within fjords, seawater temperature will have significant profound consequences on fjords. This is because even though governance may be effective mitigating/adapting local disruptions caused changing climate, there possibly nothing that can done halt melting glaciers, warming waters, all downstream changes have. review provides first transdisciplinary synthesis systems. Knowledge what are, how interact with one another, should more expedient focus research needs adapting Arctic.

Language: Английский

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Global biogeography of microbes driving ocean ecological status under climate change

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: May 31, 2024

Abstract Microbial communities play a crucial role in ocean ecology and global biogeochemical processes. However, understanding the intricate interactions among diversity, taxonomical composition, functional traits, how these factors respond to climate change remains significant challenge. Here, we propose seven distinct ecological statuses by systematically considering structure, potential of microbiome delineate their biogeography. Anthropogenic is expected alter status surface influencing environmental conditions, particularly nutrient oxygen contents. Our predictive model, which utilizes machine learning, indicates that approximately 32.44% may undergo changes from present end this century, assuming no policy interventions. These mainly include poleward shifts main taxa, increases photosynthetic carbon fixation decreases metabolism. proportion can decrease significantly with effective control greenhouse gas emissions. study underscores urgent necessity for implementing policies mitigate change, an perspective.

Language: Английский

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Emergent Relationships Between the Functional Diversity of Marine Planktonic Copepods and Ecosystem Functioning in the Global Ocean

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(3)

Published: March 1, 2025

ABSTRACT Copepods are a major group of the mesozooplankton and thus key part marine ecosystems worldwide. Their fitness life strategies determined by their functional traits which allow different species to exploit various ecological niches. The range expressed in community defines its diversity (FD), can be used investigate how communities utilize resources shape ecosystem processes. However, spatial patterns copepod FD relation functioning remain poorly understood on global scale. Here, we use estimates composition derived from distribution models combination with indicators multiple facets FD, relationships richness We also project anthropogenic climate change will impact FD. find that respond variable strength directions: richness, divergence, dispersion increase whereas evenness trait dissimilarity decrease. primary production, biomass carbon export efficiency decrease divergence dispersion. This suggests may disproportionally influenced few dominant line mass ratio hypothesis. Furthermore, is projected promote homogenization globally, globally. emergent covariance between functions here strongly call for better integrating measurements into field studies across scales understand effects changing zooplankton biodiversity functioning.

Language: Английский

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Tipping points of marine phytoplankton to multiple environmental stressors

Nature Climate Change, Journal Year: 2022, Volume and Issue: 12(11), P. 1045 - 1051

Published: Oct. 10, 2022

Language: Английский

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Microbial regulation of feedbacks to ecosystem change

Trends in Microbiology, Journal Year: 2023, Volume and Issue: 32(1), P. 68 - 78

Published: July 25, 2023

Microbes are key biodiversity components of all ecosystems and control vital ecosystem functions. Although we have just begun to unravel the scales factors that regulate microbial communities, their role in mediating stability response disturbances remains underexplored. Here, review evidence how, when, where microbes or drive disturbance feedbacks. Negative feedbacks dampen impacts disturbance, which maintain stability, whereas positive instead erode by amplifying disturbance. Here describe processes underlying responses using a hierarchy functional traits, exemplify how these may biogeochemical We suggest feedback potential traits at different hierarchical levels is contingent on complexity heterogeneity environment. Microbial functioning intrinsically linked resistance resilience ecosystems. impact stability. Functional from delineated genotypes community-wide mediate intensity direction Feedbacks can be (amplifying) negative (dampening) emerge altered cycling related responses. Generalizable frameworks for adapt time space needed increase understanding predictability temporal

Language: Английский

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The Impact of Zooplankton Calcifiers on the Marine Carbon Cycle

Global Biogeochemical Cycles, Journal Year: 2023, Volume and Issue: 37(6)

Published: May 15, 2023

Abstract Shelled pteropods and planktic foraminifers are calcifying zooplankton that contribute to the biological carbon pump via sinking of their calcareous shells. However, importance for regional global plankton biomass fluxes is not well understood. Here, we modeled annual patterns pteropod foraminifer total (TC) inorganic (TIC) export over top 200 m using five species distribution models (SDMs). An extended version MARine Ecosystem DATa (MAREDAT) abundance observations was used estimate both groups. We found hotspots mean in high Northern latitudes upwelling systems, hemispheres tropics foraminifers. This largely agrees with previously observed distributions. For groups, temperature strongest environmental correlate, followed by chlorophyll‐a. standing stocks 52 Tg TC (48 57 TC) 0.9 (0.6 1.1 foraminifers, respectively. translates TIC 14 yr −1 (9 22 ) shells 11 (3 27 tests. These results similar previous estimates but approximately a factor ten lower pteropods. Pteropods 0.2%–3.2% 0.1%–3.8% surface carbonate fluxes. Including coccolithophore fluxes, this leaves 40%–60% unaccounted for. Our figures likely lower‐bound due sampling data characteristics uncertainty associated organism growth rates.

Language: Английский

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