The article presents a meticulous examination of the global microalgae market, analyzing opportunities and prospects rooted in the scientific and technical interest in products derived from microalgae. The research systematically assesses the potential commercialization of these products across diverse regions worldwide, identifies the most promising microalgae strains, product types themself, and their potential applications. An integral aspect of the research involves a forward-looking market forecast. The analysis of scientific and technical interest delves into publication activity, considering the yearly output of works in Scopus-indexed journals utilizing the main keyword "microalgae." This assessment is presented chronologically, categorically, and regionally, offering a nuanced perspective on the evolution of interest over time and in different geographical contexts. The commercialization potential is regionally scrutinized with a focus on key regions conducive to the development of microalgae-based products, namely the Americas (USA), Asia-Pacific (China, Japan), and Europe (Germany). This evaluation is interlinked with the prevailing market dynamics in each region, providing a holistic understanding of the market landscape. The article contributes original insights derived from the analysis, offering a nuanced perspective on the microalgae market. The paper introduces a distinctive and informed viewpoint, enriching the existing knowledge on microalgae markets. By categorizing the microalgae market based on applications, including nutraceuticals & pharmaceuticals, food & beverages, cosmetics, animal feed, and biofuels, the study identifies sectors exhibiting steady growth. Notably, each of these sectors contributes to the projected average annual growth rate of 6.8 % in the global microalgae market, forecasted to reach USD 2 billion by 2030. This growth trajectory emphasizes the growing importance and potential of microalgae-derived products in various industries and the importance of developing the bioeconomy as a whole.

This study assessed the water quality and ecological integrity of the Columbe River micro-watershed in the Ecuadorian Andes through a multidimensional approach incorporating biotic, physicochemical, and structural indices. Indices such as the Andean Biotic Index (ABI), Biological Monitoring Working Party index adapted for Colombian conditions (BMWP-Col), Fluvial Habitat Index (IHF), Riparian Quality Index adapted for Andean conditions (QBR-And), and Water Quality Index (WQI) characterized environmental quality gradients and evaluated the impact of human activities across 11 monitoring sites. Hierarchical cluster analysis classified sampling sites into three groups: less polluted (LP), moderately polluted (MP), and highly polluted (HP). HP sites showed elevated levels of biochemical oxygen demand (BOD₅), chemical oxygen demand (COD), electrical conductivity (EC), and turbidity, alongside low biotic and structural scores, indicating advanced ecological degradation. Conversely, LP sites demonstrated greater ecological integrity, despite elevated BOD₅ and COD levels across the watershed, suggesting widespread diffuse contamination. The findings identify anthropogenic activities such as livestock, agriculture, and domestic discharges as major pressures on water quality and macroinvertebrate biodiversity. Significant correlations between physicochemical parameters—including BOD₅ and EC—and declining biotic indices underscore the link between chemical water degradation and ecological fragmentation. In this context, this study highlights the critical need for comprehensive management and restoration strategies to combat pollution, safeguard relatively pristine areas, and rehabilitate the ecological integrity and connectivity of high-altitude Andean aquatic ecosystems under anthropogenic pressure.

To assess the sustainability of the municipal solid waste management system (MSW), decoupling index is used. This index reflects the impact of mismatch of the direct relationship between economic growth and consumption of natural resources (pollution production). For the first time, the authors calculated the decoupling index for Moscow MSW management system in order to assess the environmental and economic sustainability of the system. The methodology of the study was based on a numerical assessment of decoupling over a certain period of time using the ratio proposed by UNEP. Calculations of the decoupling index for the municipal solid waste management system in Moscow have shown relative decoupling between the solid waste generation in the city for the period 2020-2023 and the growth of the gross regional, with the exception of the period 2021-2022, when there was a sharp decrease in condensed municipal solid waste by almost 0.7 times and absolute decoupling took place. This indicates improvements in the MSW management system in Moscow within the framework of a circular economy. The study assessed the magnitude of the mitigated greenhouse gas emissions as a result of meeting targets by diverting MSW from landfills. The approach used to assess the decoupling index for Moscow, can serve as a useful tool for assessing the environmental and economic sustainability of the MSW management system of other cities to develop future policy scenarios for sustainable MSW management in the near future.

The adoption of organic agriculture has acquired particular significance as one of the effective means of high-quality and safe products recovery. A brief conformity assessment of requirements for organic products and their regulation in the European Union is provides. The EU legislative acts are confirmed to EU market features raised for organic products. EU regulatory legal acts for imports of organic products from third countries, food quality and labeling of organic production, organic aquaculture animal and seaweed production, organic wine are considered. All food manufacturers must comply with general EU foodstuff laws and regulations, which include labeling regulations. Regulation is complemented by several legislative acts on the production, distribution and marketing of organic products, which are the legal framework for determining rules for their implementation in the EU. The United States permits the sale of European products that produced and certified under the EU organic program as organic in the United States are considered. Legislative acts EU Regulation 1235/2008, EU Regulation 2020/25, EU Regulation 889/2008, EU Regulation 710/2009, EU Regulation 203/2012 are discussed.

The voluntary market for the circulation of carbon units has been operating in Russia since 2022, thanks to which leading Russian companies register their climate projects in the registry of carbon units, issue and conduct transactions with carbon units. Given the importance of the financial implications of such operations, the confirmation of the reliability of data on actual greenhouse gas emissions and/or their absorption is of particular importance, so the issuance of carbon units is preceded by the validation of climate projects and verification of their results. Confidence in the conclusions on validation and verification is ensured by compliance of greenhouse gas validation and verification bodies with accreditation criteria which are harmonised with international standards and documents of international accreditation organisations. Thus, to recognise the results of validation and verification as in Russia also abroad, greenhouse gas validation and verification bodies need to ensure constant monitoring of changes in accreditation criteria and timely implementation of changes in their management system. This research considers the specifics of validation of climate projects and verification of their results, as well as an analysis of changes in the requirements for the activities of greenhouse gas validation and verification bodies in 2025.