#116 : Quand la pêche empêche

Quand la pêche empêche Cette semaine dans A l’UM la science Gaël Mariani du laboratoire Marbec (https://umr-marbec.fr/) nous parle de l’impact du réchauffement climatique et de la pêche sur le stockag...

smartlink.ausha.co

Natural carbon uptake by ocean biology will not deliver credible carbon credits

Nature Reviews Earth & Environment - Natural CO2 removal is increasingly being claimed as anthropogenic climate mitigation. This misrepresentation is already prevalent for forests and coastal...

rdcu.be

Océans : les poissons, un puits de carbone invisible menacé par la pêche et le changement climatique

La pêche industrielle réduit la capacité des océans à stocker le CO₂. Protéger la haute mer pourrait renforcer ce puits de carbone vital sans menacer la sécurité alimentaire.

doi.org

The combined impact of fisheries and climate change on future carbon sequestration by oceanic macrofauna - Nature Communications

Marine animals play a key role in locking carbon deep in the ocean, slowing climate change. This study finds that fishing has already cut this service in half, with climate change expected to further ...

nature.com

Russia arrests Ukrainian biologist for backing curbs on Antarctic krill fishing

‘Trumped-up’ charges spark diplomatic row as scientists express fears for health of 70-year-old Leonid Pshenichnov

theguardian.com

Accounting for albedo in carbon market protocols - Nature Communications

The paper analyzes the impact of omitting biophysical effects from carbon credits on climate mitigation. It shows that some Voluntary Carbon Market projects may result in net warming due to albedo whi...

nature.com

Wildlife Photographer of the Year awards – in pictures

The Wildlife Photographer of the Year is an annual competition hosted by the Natural History Museum in London, which awards top honours in various categories for outstanding photography

theguardian.com

What the WTO’s deal to curb fisheries subsidies means and what it could achieve

For decades, government subsidies have helped industrial fishing fleets to expand, often with little regard for sustainability.

theconversation.com

Marine heatwaves modulate food webs and carbon transport processes - Nature Communications

A decade of BGC-Argo and plankton records shows North Pacific heatwaves reshape food webs and trap small particles in midwater, slowing deep-ocean carbon export. Impacts vary by event, underscoring the need for sustained ocean monitoring.

nature.com

La majorité de la pêche industrielle dans les aires marines protégées échappe à toute surveillance

La majorité des aires marines protégées dans le monde n’offre que peu de protection face à la pêche industrielle, qui échappe souvent à toute surveillance publique.

theconversation.com

Non à la Loi Duplomb — Pour la santé, la sécurité, l’intelligence collective. - Non à la Loi Duplomb — Pour la santé, la sécurité, l’intelligence collective. - Plateforme des pétitions de l’Assemblée ...

Je m'appelle Eléonore PATTERY, j’ai 23 ans, et je suis actuellement en Master QSE et RSE (Qualité, Sécurité, Environnement / Responsabilité Sociétale des Entreprises). En tant que future professionne...

petitions.assemblee-nationale.fr

Auditors can’t save carbon offsets

The theory behind carbon offset projects is appealing: Instead of an organization cutting its own emissions, it can fund lower-cost carbon-reducing projects elsewhere to “offset” its emissions. The re...

science.org

Indicators of Global Climate Change 2024: annual update of key indicators of the state of the climate system and human influence

Abstract. In a rapidly changing climate, evidence-based decision-making benefits from up-to-date and timely information. Here we compile monitoring datasets (published at https://doi.org/10.5281/zenodo.15639576; Smith et al., 2025a) to produce updated estimates for key indicators of the state of the climate system: net emissions of greenhouse gases and short-lived climate forcers, greenhouse gas concentrations, radiative forcing, the Earth's energy imbalance, surface temperature changes, warming attributed to human activities, the remaining carbon budget, and estimates of global temperature extremes. This year, we additionally include indicators for sea-level rise and land precipitation change. We follow methods as closely as possible to those used in the IPCC Sixth Assessment Report (AR6) Working Group One report. The indicators show that human activities are increasing the Earth's energy imbalance and driving faster sea-level rise compared to the AR6 assessment. For the 2015–2024 decade average, observed warming relative to 1850–1900 was 1.24 [1.11 to 1.35] °C, of which 1.22 [1.0 to 1.5] °C was human-induced. The 2024-observed best estimate of global surface temperature (1.52 °C) is well above the best estimate of human-caused warming (1.36 °C). However, the 2024 observed warming can still be regarded as a typical year, considering the human-induced warming level and the state of internal variability associated with the phase of El Niño and Atlantic variability. Human-induced warming has been increasing at a rate that is unprecedented in the instrumental record, reaching 0.27 [0.2–0.4] °C per decade over 2015–2024. This high rate of warming is caused by a combination of greenhouse gas emissions being at an all-time high of 53.6±5.2 Gt CO2e yr−1 over the last decade (2014–2023), as well as reductions in the strength of aerosol cooling. Despite this, there is evidence that the rate of increase in CO2 emissions over the last decade has slowed compared to the 2000s, and depending on societal choices, a continued series of these annual updates over the critical 2020s decade could track decreases or increases in the rate of the climatic changes presented here.

essd.copernicus.org

Océan et climat : quelles options pour demain ? Un regard sur la recherche en France

Le congrès de l’ONU sur les océans débutera à Nice, le 9 juin. Comment l’océan peut-il nous aider à atténuer le changement climatique et à nous y adapter ? La recherche française est mobilisée.

theconversation.com

Addressing critiques refines global estimates of reforestation potential for climate change mitigation - Nature Communications

Reforestation is a key climate change mitigation strategy, but global maps of its potential are widely criticized. This study shows that addressing those critiques substantially refines estimates of t...

nature.com

The fishery for Antarctic krill – Conflicts between industrial production, protection of biodiversity, and legal governance

The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is responsible for conserving the Antarctic marine ecosystem, where …

sciencedirect.com

Why we should protect the high seas from all extraction, forever

Exploitation of the high seas risks doing irreversible damage to biodiversity, climate stability and ocean equity. A consensus must be built now to save them.

nature.com