The paper is devoted to the outstanding Russian scientist Vladimir I. Vernadsky, who is one of the founders of ecology. As a student of V.V. Dokuchaev, he developed his teacher’s ideas of a systematic dynamic approach to the study of nature and introduced a deep scientific ecological content into the concepts of the biosphere and the noösphere. V.I. Vernadsky is the founder of a complex of modern Earth sciences (geochemistry, biogeochemistry, radiology, and hydrogeology) and the creator of many scientific schools. In his scientific work, he covered many research areas, from geology to the study of the role of living matter in geochemical cycles, from soil science to the biosphere, the increasing influence of scientific thought, human activity in the biosphere and its transformation into the noösphere. The importance of agriculture in the biosphere and the noösphere is considered. The biosphere is an area of active life on Earth (troposphere, hydrosphere and part of the lithosphere), the composition, structure and energy of which are mainly due to the activity of living organisms. The noösphere is its thinking shell. Agriculture, whose most important part are grassland ecosystems, is an important component of the biosphere, being a reproducible, autotrophic sustainable resource (energetical, environmental, food and feed). In light of the pressing environmental problems facing the world, environmental education and environmental thinking are a priority for the development of the biosphere, the noösphere and agriculture.

Distribution features of cadmium, lead, partly Ag, Bi, In, Hg and Tl in suspended solids are considered. Studies were made on the Oka River in the area of the Prioksko-Terrasny Natural Biosphere Reserve on a river section remote from the zone of formation of the technogenic scattering stream, in the period 1983–2018. To assess the general trend of changes in the concentration of the elements over the period of the experiment, it was proposed to consider the results on their prevalence in the composition of suspended matter obtained in the intermediate hydrological phase of the river between the spring flood and the summer midden. This is the main feature and essence of our proposed approach in order to eliminate the influence of significant seasonal changes in the macro- and micro-component composition of suspensions. It is shown that the 35-year time interval can be divided into two periods, namely: the first one is characterized by a decrease in the concentration of heavy metals (Cd, Pb), while the second one is characterized by the absence of any trend, relatively weak fluctuations in values. The direction of changes in the concentration of elements in the first period correlates with the literature data on the dynamics of a decrease in the intake of anthropogenic wastewater into surface waters in recent decades and with the results of our assessment of the decrease in river water pollution upstream from the experimental area.

December 29, 2024 marked the 100th anniversary of the founding of Russia's largest cultural and educational environmental organization, the All-Russian Nature Conservation Society (ARNCS). The article discusses the main stages of the crea­tion, formation and development of ARNCS and its main achievements.

The article presents a retrospective analysis of the development of educational and enlightenment activities in the Earth Science Museum of Moscow State University named after Lomonosov from the moment of its foundation to the present. The following trends are highlighted: expansion of the forms and methods of museum pedagogy over time, introduction of interactive methods in the practice of the educational and enlightenment activities, work with various age visitor groups (from younger pupils and students to adults), as well as the use of digital methods in the educational process.

The article examines the problem of energy efficiency in the chain from the production of fertilizers to their logistics, application, and waste production and disposal based on the huge amount of data accumulated in recent years on greenhouse gas (GHG) emissions (primarily CO₂ and methane). Carbon dioxide emissions are shown to occur primarily from fuel combustion, as well as from the use of methane and CO₂ as precursors for nitrogen fertilizers. GHG emissions can be considered as a measure of energy efficiency when assessing the life cycle of mineral fertilizers. Relevant examples are given.

Built over five centuries ago using white stone, this unique Russian architectural monument stands as the sole surviving building from the estate of the Romanov boyars, located in the ancient part of Moscow known as “Zaryadye.” Today, it serves as the museum “Chambers of the Boyars of the Romanovs.” However, the masonry has begun to collapse under the influence of water, frost, and various technogenic loads.

The monument’s location is characterized by the presence of unfavorable engineering and geological processes, with flooding being the main issue. This has led to a rise in groundwater levels and their constant interaction with the foundation’s soil. The excess moisture content in the limestone pores, saturated with aggressive components (SO42-, NO3-,Cl-), has led to limestone dissolution and leaching, as well as salt crystallization both on the surface and inside the masonry.

To understand the weathering processes affecting the limestone, researchers conducted a study on samples taken from several parts of the monument, dividing them into several groups based on their structural stability. The results revealed that the structurally unstable, completely destroyed to a dispersed state (reminiscent of flour) samples, displayed significant changes in their physical, mechanical and chemical properties. This was due to the leaching of calcite, leading to a decrease in its content from 99 % down to 40-45 %, and an increase in porosity from 15 % up to 49 %, resulting in a density reduction from 2.29 down to 1.32 g/cm³.

The study also found that microbial components in the stone could also lead to an increase in the content of finely dispersed fractions. The walls of the monument, both inside and outside, were found to be colonized by mold fungi (9 species) and bacteria (2 species). The genera Penicillium (5 species) and Aspergillus (2 species), renowned as biodestructors of stone materials, were the most prevalent among the identified species. The content of these micromycetes varied significantly (ranging from 300 to 105 CFU/g) depending on the sampling location.