Addressing climate change and food security, this article evaluates ground silicate rocks (remineralizers) as tools for atmospheric CO₂ capture and food and nutrition security. The experiments were conducted under controlled conditions using leaching columns, to quantify the leached carbon and pots, to evaluate the growth and nutrition of three agricultural crops. Five rock types (basalt, kamafugite, chlorite–muscovite calc–schist, hydrothermalized calc–silicate, and biotite–actinolite schist) were applied to a clayed Red Oxisol (S) at 20 t ha⁻¹, with and without organic matter (OM) at 40 t ha⁻¹. The study involved 84 experimental units, including S, S + R, S + OM, S + R + OM, and S, S + OM and NPK controls. The results demonstrate that R + OM synergies significantly improved soil chemical properties, raising pH from 5 to 7 and increasing electrical conductivity. These amendments enhanced the growth and mineral content of beans, arugula, and carrots compared to conventional NPK formulations. While OM influenced overall carbon mobility, the specific contribution of silicate minerals to carbon dioxide removal (CDR) was most evident in S + R treatments. The findings suggest that integrating regional mineral resources with organic amendments offers a scalable, sustainable alternative to synthetic fertilizers, fostering resilient agricultural systems while contributing to global carbon sequestration targets.

Addressing climate change and food security, this article evaluates ground silicate rocks (remineralizers) as tools for atmospheric CO2 capture and food and nutrition security. The experiments were conducted under controlled conditions using leaching columns (to quantify the leached carbon) and pots (to evaluate the growth and nutrition of three agricultural crops). Five rock types (basalt, kamafugite, chlorite-muscovite calc-schist, hydrothermalized calc-silicate, and biotite-actinolite schist) were applied to a Red Oxisol (S) at 20 t ha⁻¹, with and without organic matter (OM) at 40 t ha⁻¹. The study involved 84 experimental units, including S, S+R, S+OM, S+R+OM, and S, S+OM and NPK controls. Results showed that rock-OM mixtures significantly improved soil pH and electrical conductivity, enhancing the growth and nutritional content of three agricultural crops (beans, arugula, and carrots) compared to controls. Nutrient dynamics varied across leached liquids and in the soils of the columns and pots. While OM increased leached carbon, the direct influence of silicate rocks on CO2 capture was more pronounced in S+R treatments. The findings underscore the vital role of local, innovative strategies in providing sustainable solutions to global challenges.

A produção artesanal de sabão é uma prática ancestral que resiste ao tempo, mantendo relevância em comunidades de cidades como Unaí-MG, onde os saberes tradicionais ainda permeiam o cotidiano. Esta pesquisa tem como objetivo analisar as receitas e os métodos de produção de sabão caseiro, identificando os saberes empíricos, os desafios e as possibilidades de sustentabilidade local. Trata-se de uma pesquisa aplicada, qualitativa e participante, conduzida por meio de entrevistas semiestruturadas com seis produtores/as locais. Os dados revelam uma diversidade de ingredientes e modos de preparo, com predominância de receitas tradicionais transmitidas oralmente e baseadas no reaproveitamento de óleo de cozinha, soda cáustica e aditivos como bicarbonato, álcool e o fruto do tingui. Observou-se uma lacuna no domínio de conceitos científicos, contrastando com o forte valor cultural e a preocupação ambiental presentes nos relatos. Os resultados indicam que a prática, além de ser sustentável, promove a economia doméstica, preserva a identidade cultural e pode ser um instrumento educativo eficaz. A pesquisa sugere a necessidade de ações formativas e políticas públicas que valorizem esses saberes, aliando ciência e tradição para garantir segurança, qualidade e impacto socioambiental positivo da produção artesanal de sabão.

Ex situ conservation is necessary for the preservation of threatened birds, but captive populations often exhibit low genetic diversity and high inbreeding, which affects their viability. Genetic tools have been incorporated into reproductive management to guide the selection of breeding pairs and prevent genetic problems related to inbreeding. This systematic review aims to synthesize the application of these tools in birds kept ex situ. Twenty-six articles obtained from the Google Scholar and Web of Science databases were analyzed. The results indicated a predominance of threatened species, especially Psittaciformes, with greater use of genetic diversity analyses, kinship estimates, microsatellites, and pedigree records. The main applications involved mate selection, the maintenance of genetic diversity, and the reduction of inbreeding. There is a notable growing trend toward the use of SNP-based genomic approaches, which enhance the precision of genetic management in ex situ conservation programs.