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Member States' use of revenues from the auctioning of EU ETS allowances, 2020-2024

This metadata overs the dataset containing information on how EU Member States spend the revenues from auctioning EU ETS emission allowances in one calendar year. More information on the EU Emissions Trading System (EU ETS) can be found here. The revenues from the auctioning of these allowances represent an increasing income source for Member States. This data is being collected under Article 19 of the Governance Regulation. The Regulation’s aim is to help the EU reach its 2030 climate and energy targets by setting common rules for planning, reporting and monitoring. The Regulation also ensures that EU planning and reporting are synchronised with the ambition cycles under the Paris Agreement. Reporting is mandatory for EU Member States. Some information is only mandatory to report if the data is available.

Total suspended matter, particulate organic matter and particulate inorganic matter from discrete water samples during RV MARIA S MERIAN cruise MSM129/1

This dataset was collected during the cruise MSM129/1 with RV MARIA S. MERIAN from Warnemünde, Germany to St. John's, Canada. It contains suspended particulate matter, particulate organic matter and particulate inorganic matter measurements [mg/l] from water samples collected from the seawater supply (Reinseewassersystem, RSWS) to calibrate the turbidity data of the RSWS system. The outflow of a PocketFerrybox that was connected to the seawater supply in the hangar was used for sampling. It takes a substantial amount of time for the water to reach the hanger from the intake point. The time delay between the sensor readings of the RSWS and the PocketFerrybox was determined and the timestamps of the water sampling were adjusted accordingly. Given latitute and longitude refer to this corrected timestamp. The original time of water sampling in the hangar is given as an additional column with the comment time of sampling. To obtain suspended particulate matter concentrations, water samples were filtered onboard through 0.7 μm pore size, glass fiber filters (Whatmann GF/F, 47 mm) under low vacuum. Filters were frozen immediately at -80 °C until gravimetric analysis in the laboratory at ICBM, Wilhelmshaven according to IOCCG recommendations.

Use cases from the German NTSPortal on the systematic use of high-resolution mass spectrometry non-target screening data in environmental monitoring and chemicals management

Background Society aims for a pollutant-free environment, reflected in initiatives under the European Green Deal, which seek to reduce hazardous substances and promote safe, sustainable chemical use. Comprehensive exposure data are needed to identify sources, understand mixtures and eliminate sources of chemical pollution. High-resolution mass spectrometry non-target screening (HRMS NTS) is increasingly used in environmental regulatory context to chemically characterise the environment as completely as possible and retrospectively screen for known and emerging substances. Results This study provides use cases for monitoring and chemicals management with data from the German NTSPortal, a database and visualisation tool for HRMS NTS data from surface water and suspended particulate matter of major German rivers. Its internal spectral library enables substance identification comparable to standardised target analysis, supporting regulatory acceptance of HRMS NTS data for prioritisation and mixture assessment. To demonstrate its potential to research and regulation, we characterised the spatial and temporal distribution of riverine chemical mixtures and present selected use cases relevant to EU environmental, emission, and chemical legislation. Despite pronounced spatial variability, mixture composition based on presence–absence data remained stable over time, with 855 of 1721 substances detected at least once and 247 occurring ubiquitously. Declining trends for regulated substances such as carbendazim and climbazole illustrate the effectiveness of regulatory measures. Overall, the results showed that NTS data repositories can help overcome fragmented exposure information and enable more consistent use of monitoring data across policy areas, including evaluation of the revised Urban Waste Water Treatment Directive and One Health concepts. Conclusions Data from the German NTSPortal enabled a multi-matrix and temporal characterisation of riverine chemical mixtures, revealing both stable mixture compositions over time and persistent, catchment-specific substances. These data facilitated high-resolution mixture assessments across space and time, alongside trend analyses that meet regulatory needs in environmental monitoring and chemical risk assessment. Further temporal, spatial, chemical and matrix-spanning expansion of HRMS NTS repositories will enhance their value for environmental monitoring programmes. Strengthening interoperability, implementing FAIR data principles, and developing advanced tools for prioritisation, quantification and toxicity prediction, including AI-based approaches, will be crucial to fully realise the regulatory potential of NTS portals in the future. © The Author(s) 2026.

REACH Mindestanforderungen PBT

Konkretes Management von Substanzen von hoher Besorgnis im Rahmen von REACH; Exemplarische Beschreibung an Fallbeispielen.

Chlorophyll a and phaeophytin a measurements from discrete water samples during RV MARIA S. MERIAN cruise MSM129/1

This dataset was collected during the cruise MSM129/1 with RV MARIA S. MERIAN from Warnemünde, Germany to St. John's, Canada. It contains chlorophyll-a measurements [µg/l] from water samples collected from the seawater supply (Reinseewassersystem, RSWS) as well as from three CTD casts to calibrate the fluorometers of the RSWS system and the CTD, respectively. The outflow of a PocketFerrybox that was connected to the seawater supply in the hangar was used for sampling. It takes a substantial amount of time for the water to reach the hanger from the intake point. The time delay between the sensor readings of the RSWS and the PocketFerrybox was determined and the timestamps of the water sampling were adjusted accordingly. Given latitute and longitude refer to this corrected timestamp. The original time of water sampling in the hangar is given as an additional column with the comment time of sampling. To obtain chl-a concentrations, water samples were filtered onboard through 0.7 μm pore size, glass fiber filters (Whatmann GF/F) under low vacuum. Filters were frozen immediately at -80 °C until extraction in laboratory by 90% acetone method. Concentrations were calculated from fluorescence measured with a pre-calibrated Turner Design TD 7200-02 laboratory fluorometer (EPA445.0, Turner Manual).

Distribution and concentration of nutrients, carbon compounds and methane in water samples in the southern German Bight during RV HEINCKE cruise HE673/2, MOSES Sternfahrt 15 in November 2025

Previous Sternfahrten were mainly conducted in spring and summer. To cover the seasonal aspects more thoroughly, including a winter situation, this cruise was conducted in late autumn (20 -22 November 2025 ). We used the RV Heincke (cruise HE673/2) instead of the RV Uthörn. The Heincke's draught is greater, so we could not reach all of our previous stations. Surface and bottom water samples were taken with a rosette.

Total alkalinity and pH in the alkalization mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment

This dataset contains repeated measurements of seawater pH and total alkalinity recorded in the alkalinization mesocosms, a set of tanks without oysters that received the same alkalinity treatments as the exposure mesocosms reported in a companion dataset. Total alkalinity was raised in three alkalization cycles to reach target increases of +250 or +500 µmol/kg over unamended seawater, using either dissolved alkalinity addition (NaOH and CaCl2) or olivine-based coastal enhanced silicate weathering. The three cycles ran 17 April to 7 May 2024, 8 May to 27 May 2024 and 30 May to 19 June 2024. Measurements were taken predominantly in triplicate per treatment and sampling day. Seawater pH was measured with a pH electrode and total alkalinity by open-cell potentiometric titration, both on a Metrohm 855 Robotic Titrosampler.

Distribution and concentration of nutrients, carbon compounds and methane in water samples in the southern German Bight (North Sea) in February 2025 , during MOSES Sternfahrt 13

Previous Sternfahrten were mainly conducted in spring and summer. To cover the seasonal aspects more thoroughly, including a winter situation, Sternfahrt 13 was conducted in February 2025 (10–12 February). We used the RV Heincke (cruise HE653/2) instead of the RV Uthörn. The Heincke's draught is greater, so we could not reach all of our previous stations. Surface and bottom water samples were taken with a rosette; in the event of stratification in the water column, an additional sample was taken from the middle.

European Union Emissions Trading System (EU ETS) data from the Union Registry, Sep. 2026

This is the metadata for the EU Emission Trading System (EU ETS). EU ETS aims to reduce greenhouse gas emissions cost-effectively by setting a cap on the total amount of emissions from covered sectors. These sectors include power and heat generation, energy-intensive industries aviation and shipping within the European Economic Area. Under the system, companies receive or purchase emission allowances, each permitting the release of one tonne of CO₂ or equivalent gases. Businesses can trade these allowances, creating a financial incentive to reduce emissions. If a company emits less than its allowance, it can sell the surplus; if it exceeds the cap, it must buy more or face penalties. The cap is reduced annually, ensuring a steady decline in emissions over time. The system has gone through several phases, with the current Phase 4 running from 2021 to 2030. It also supports innovation and investment in low-carbon technologies through dedicated funds. Overall, the EU ETS plays a key role in helping the EU reach its climate neutrality goal by 2050. Data about the EU emission trading system (ETS). The EU ETS data viewer provides aggregated data on emissions and allowances, by country, sector and year. The data mainly comes from the Union Registry. Additional information on auctioning and scope corrections is included.

Energy Savings 2020: How to triple the impact of energy saving policies in Europe?

Europe needs to triple the impact of its energy efficiency policies to achieve its 2020 targets set last year, according to a new study written by Ecofys and the Fraunhofer ISI. The study reveals that the potential exists to reach the 20 percent energy saving by 2020 goal cost-efficiently, cutting energy bills by € 78 billion for European consumers and businesses annually by 2020. However, current EU policy is delivering only one-third of the potential cost-effective savings measures. Increased energy savings will also warrant easier and less expensive achievement of a 20 percent share of renewables in the EU energy mix in 2020. The study was commissioned jointly by the European Climate Foundation (ECF) and the Regulatory Assistance Project (RAP).

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