Found 10481 publications. Showing page 118 of 420:
Maternal effects are thought to be essential tools for females to modulate offspring development. The selective deposition of avian maternal hormones could therefore allow females to strategically adjust the phenotype of their offspring to the environmental situation encountered. However, at the time of egg formation, several contaminants are also transferred to the egg, including per- and polyfluoroalkyl substances (PFAS) which are ubiquitous organic contaminants with endocrine disrupting properties. It is, however, unknown if they can disrupt maternal hormone deposition. In this study we explored relationships between female PFAS burden and maternal deposition in the eggs of steroids (dihydrotestosterone, androstenedione and testosterone), glucocorticoids (corticosterone) and thyroid hormones (triiodothyronine and thyroxine) in a population of the Arctic-breeding black-legged kittiwake (Rissa tridactyla). Egg yolk hormone levels were unrelated to female hormone plasma levels. Second-laid eggs had significantly lower concentrations of androstenedione than first-laid eggs. Triiodothyronine yolk levels were decreasing with increasing egg mass but increasing with increasing females' body condition. Testosterone was the only transferred yolk hormone correlated to maternal PFAS burden: specifically, we found a positive correlation between testosterone in yolks and circulating maternal perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDcA) and perfluoroundecanoic acid (PFUnA) in first-laid eggs. This correlative study provides a first insight into the potential of some long-chain perfluoroalkyl acids to disrupt maternal hormones deposition in eggs and raises the question about the consequences of increased testosterone deposition on the developing embryo.
2023
2011
2012
2023
2015
2016
2006
2015
2016
2018
There is little information to decision support in air traffic management in case of nuclear releases into the atmosphere. In this paper, the dose estimation due to both, external exposure (i.e. cloud immersion, deposition inside and outside the aircraft), and due to internal exposure (i.e, inhalation of radionuclides inside the aircraft) to passengers and crew is calculated for a worst-case emergency scenario. The doses are calculated for different radionuclides and activities. Calculations are mainly considered according to International Commission on Radiological Protection (ICRP) recommendations and Monte Carlo simulations. In addition, a discussion on potential detectors installed inside the aircraft for monitoring the aerosol concentration and the ambient dose equivalent rate, H*(10), for during-flight monitoring and early warning is provided together with the evaluation of a response of a generic detector. The results show that the probability that a catastrophic nuclear accident would produce significant radiological doses to the passengers and crew of an aircraft is very low. In the worst-case scenarios studied, the maximum estimated effective dose was about 1 mSv during take-off or landing operations, which is the recommended yearly threshold for the public. However, in order to follow the ALARA (As Low As Reasonably Achievable) criteria and to avoid aircraft contamination, the installation of radiological detectors is considered. This would, on one hand help the pilot or corresponding decision maker to decide about the potential change of the route and, on the other, allow for gathering of 4D data for future studies.
2019
2009
2014
2012
Drivers and sector disaggregation of projections and trajectories. ETC technical paper.
Member States are required to report on the country’s greenhouse gas emission projections and national integrated climate and energy policies and measures under the Governance Regulation of the Energy Union and Climate Action (EU) 2018/1999 every two years. This data is quality-checked by the ETC CM and subsequently used in several analysis and reports. GHG projections are an important information source to assess if countries are on track to achieve their mitigation targets. In this study, we delve deeper into the reporting to identify the primary drivers of GHG emissions at the most detailed disaggregation level possible. We aim to assess their impact on projections and evaluate the consistency between policies and projections, with the ultimate objective of improving the quality control activities of the ETC CM.
ETC Climate change mitigation
2024
Climate change intensifies multi‑hazard risks that affect ecosystems, societies, and economies. Addressing these interconnected risks requires integrated systems, harmonized data, and cross‑sectoral collaboration. Research infrastructures (RIs) that observe climate‑ and nature‑related processes generate essential data and services for understanding climate risk determinants: hazard, exposure, and vulnerability, yet their potential remains underutilised by financial, banking, and insurance sectors that increasingly face nature‑dependent risks.IRISCC (Integrated Research Infrastructure Services for Climate Change Risks; www.iriscc.eu) unites leading European Research Infrastructures (Ris) to provide open, standardized climate‑risk data, tools, and services through transnational and virtual access. With nearly 80 partners across natural and social sciences, IRISCC strengthens the scientific foundations for integrated climate‑risk assessment and supports the translation of RI data and tools into risk‑management landscapeWe conducted a stakeholder analysis to map the current and emerging climate‑risk service landscape and to assess how IRISCC services connect with academic, industry and decision making sectors. Survey data from IRISCC partners combined with a preliminary mapping of climate‑risk service providers, show that while strong links exist with EU‑level organizations, direct engagement with financial, banking, and insurance sectors is still very limited. This gap is critical: recent assessments by the European Central Bank indicate that around 72% of European companies depend heavily on at least one ecosystem service, underscoring the financial sector’s exposure to nature degradation (Elderson F.2023, Network for Greening the Financial System NGFS, 2022)Our findings highlight significant opportunities to embed scientific communities more efficiently, to enhance RI usage, harmonized datasets, and analytical tools into multi‑hazard climate‑risk services. Strengthening these connections can support more robust risk detection, prevention, and early‑warning capabilities, particularly for nature‑dependent industries.This presentation outlines the key findings from stakeholder analysis, identifies gaps in the current service landscape related to climate risks, and open the potential of IRISCC’s services to contribute to the needs of financial and insurance sectors. By fostering new collaborations and co‑created solutions, IRISCC aims to advance a more holistic, interoperable, and science‑based climate‑risk ecosystem in Europe.IRISCC is funded by the European Union (project number 101131261). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them. Elderson F. The economy and banks need nature to survive. European Central Bank. Published June 8, 2023. Accessed January 15, 2026. https://www.ecb.europa.eu/press/blog/date/2023/html/ecb.blog230608~5cffb7c349.en.htmlNetwork for Greening the Financial System (NGFS). Nature‑related risks. Published 2022. Accessed January 15, 2026. https://www.ngfs.net/en/what-we-do/nature-related-risks
2026
2013