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Resumen La familia juega un papel fundamental tanto en la socialización como en la configuración de valores en menores y adolescentes. Esta investigación estudia las percepciones del estudiantado adolescente sobre prácticas parentales y valores familiares e identifica las conductas prosostenibilidad de dicho estudiantado en una triple perspectiva: reducir, reutilizar y reciclar (3R). La población diana es el estudiantado de bachillerato de la ciudad de Cuenca (Ecuador). El análisis de datos incluye: comparación de medias, coeficiente de correlación r de Pearson y regresión lineal simple. Los resultados señalan que las mujeres y los varones adolescentes del estudio perciben un elevado apoyo parental a su autonomía y que las madres conceden mayor importancia al valor de ayuda a los demás. Adicionalmente, un alto porcentaje de los sujetos realizan al menos una acción de las 3R. Se concluye que la muestra percibe a la familia como un agente impulsor de su desarrollo como sujetos autónomos, un factor prometedor para la integración de valores y el desarrollo de competencias para la sostenibilidad; sin embargo, reconoce que la escuela es donde se fragua su compromiso con un futuro sostenible con más intensidad.

Abstract The family plays a fundamental role both in socialization and in the configuration of values in minors and adolescents; including those related to environmental care. In keeping with this premise, Unicef (2018) announced that the sustainable development of the planet requires counting on families; it pointed them out as essential collaborators of governments for the quality of life of future generations. Considered a natural and elemental unit of all modern societies and an educational agent of the first order for the development and psychosocial adjustment of its members, the family is also a primary socialization agent (Fontana-Abad, Gil y Reyero, 2013). It plays a key role in the internalization of prosocial values, such as self-transcendence (care and universalism) and conservation (conformity, safety, and tradition); values ​​closely related to pro-environmental behaviors (Barrera-Hernández, Sotelo, Echeverría y Tapia, 2020). Following this line, this research studies the perceptions that adolescents have about family values, parental support for autonomy, and environmental care practices, according to the 3R rule, in a triple perspective: reduce, reuse, and recycle. It uses a quantitative, descriptive, and relational methodology. The target population was high school adolescents from the city of Cuenca (Ecuador). The sample was made up of 122 adolescents which attended three schools: one private educational unit (36.1 %) and two public (27.9 % and 36.1 %). Of the respondents, 38.8 % were female and 61.2 % were male, and they all were between 15 and 19 years old (M = 16.4; SD = 1.2); 27 % were in their first year of high school (15-17 years), 44.3 % were in their second year of high school (16-18 years) and the 28.7 % were in their third year (17-19 years). Data analysis includes comparison of means, Pearson's r correlation coefficient and simple linear regression. The results indicate that a high percentage of the adolescents in the study carry out at least one of the following environmental care actions (these are organized from highest to lowest frequency): saving water and electricity consumption, using garbage cans, reusing bottles, separating garbage, and participating in actions in favor of environment. Likewise, it is detected that they perceive family as a driving agent for their development as autonomous subjects, and a promising factor for the process of integration of values ​​and the development of competencies for caring for the environment; however, they still recognize the school as the place where their commitment to a sustainable future is most intensely forged. Additionally, the adolescents in the study perceive a high parental support for their autonomy and, likewise, that mothers attach greater importance to the value of helping others, a central axis in the ethics of care that characterizes the paradigm of sustainability. This research corroborated, once again, the ONU's (2015) position when it indicates that the family is a main agent of change for sustainability, with a decisive influence on the preservation of life and ecosystems. It endorses the relevance of promoting educational strategies that promote family-school relations in order to enhance the role of the former in the acquisition of pro-environmental values ​​and, ultimately, its collaboration in the quality of formal education aimed at sustainability. With these results, a path is opened to improve the knowledge on the parental role in relation to the promotion of behaviors of environmental care (pro-sustainability), within the framework of adolescents' and young people's formal education.

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The aim of the research is to examine the relationships between the following variables (a) Theory of Planned Behavior (TPB), composed of Attitudes (ATT), Subjective Norms (SN), and Perceived Behavioral Control (PBC); and (b) Consciousness (EC) on the dependent variable Environmentally Responsible Purchase Intention (ERPI) from the perspective of the Latin American consumer in a pandemic. Currently, the literature on the relationships proposed in the explanatory model is still scarce at a theoretical and practical level, without empirical evidence in Latin America. The data collection is from 1624 voluntary responses from consumers in Chile (n = 400), Colombia (n = 421), Mexico (n = 401), and Peru (n = 402) collected through online surveys. Using structural equation modeling (SEM) and multi-group to test invariance analysis and the moderating effects, we can determine the relationship between the variables in the proposed model, generating evidence from Latin American countries. The empirical analysis verified that Attitude (ATT), Perceived Behavioral Control (PBC), and Environmental Consciousness (CE) have a positive and significant effect on Environmentally Responsible Purchase Intention (ERPI). The results also show that the generation variable presents invariance. Therefore, the groups are not different at the model level for the generation variable, becoming relevant to the difference at the path level. Therefore, the results of this study become a relevant contribution, indicating a moderating effect on the generation variable. This research provides insights for understanding Latin American consumers, and managerial implications are also provided for developing strategies to promote sustainable consumption.

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Silver nanoparticles (AgNPs) are applied in diverse industries due to their biocide and physicochemical properties; therefore, they can be released into aquatic systems, interact with environmental factors, and ultimately exert adverse effects on the biota. We analyzed AgNPs effects on Ceriodaphnia reticulata (Cladocera) through mortality and life-history traits, considering the influence of food (Tetradesmus obliquus, Chlorophyceae) presence and concentration. C. reticulata was exposed to AgNPs in acute (absence and two algae concentrations plus five AgNPs treatments) and chronic assays (two algae concentrations plus three AgNPs treatments). AgNPs did not affect algae flocculation but increased Ag+ release, being these ions less toxic than AgNPs (as proved by the exposure to AgNO3). A reduction in AgNPs acute toxicity was observed when algae concentration increased. Acute AgNP exposure decreased C. reticulata body size and heart rate. The chronic AgNP exposure reduced C. reticulata molt number, growth, heart rate, and neonate size:number ratio, being these effects mitigated at the highest algae concentration. Increases in relative size and number of neonates were observed in AgNP treatments suggesting energy trade off. The increased Ag+ release with food presence suggests that the AgNP-algae interaction might be responsible of the decreased toxicity. Although algae reduced AgNP toxicity, they still exerted adverse effects on C. reticulata below predicted environmental concentrations. Since algae presence reduces AgNP effects but increases Ag+ release, studies should be continued to provide evidence on their toxicity to other organisms.

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There is a growing concern about glyphosate's behavior in the environment. Herbicide behavior in soils greatly depends on adsorption-desorption phenomena, which have shown great variability in soils, although the reversibility of this process has been less examined. The adsorption-desorption behavior of glyphosate was measured on representative soil profiles of the northeast region of Argentinean Pampas, a semi-arid crop cultivating region. Two soil profiles samples (P1 and P2, both Entic Haplustoll) were collected and segmented into depth increments of 0-10, 10-20, 20-40, 40-60, 60-80, and 80-100 cm. Batch adsorption/48 h-desorption isotherms were performed in a controlled setup. Soil samples had a high sand content (77-92%), and a low content of clay (<3%), but markedly differing in the available P content, especially in the upper layers of soil profiles (0-40 cm, P1 range 133-170 ppm; P2 range 7-43 ppm). Adsorption-desorption isotherms showed a similar range of variation, between 150 and 1400 L kg -1for KFads and 450-1400 L kg -1for KFdes, without appreciable evidence of hysteresis (0.95 ± 0.05). Sorption capacity parameters showed a distinct behavior with depth, P1 exhibiting a U-shape with minimum values at intermediate depths (20-60 cm), while P2 decreases sharply between 0 and 40 cm. General linear models considering the specific surface area (SSA) of each sample and the spatial correlation structure for soil profiles showed a main positive association of KFads and KFdes with the soil organic matter, together with a positive association with iron content (KFads), and a negative association of KFdes with available P content. These results indicate high adsorption extents and sorption reversibility of glyphosate to sandy loam soils of the region, which implies the potential for the herbicide to be available for leaching or degradation under a scenario of intensive use.

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The COVID-19 pandemic has changed the way resources are consumed around the world. The relationship between the pandemic and water consumption has important implications for the management of water use and must be evaluated in depth. The main goal of this research paper is to establish a comparison between pre-pandemic and pandemic water consumption profiles for 14 social-housing buildings located in Joinville, Southern Brazil. Telemetry data from each apartment were collected on an hourly basis before and during the COVID-19 pandemic. The analysis was based on descriptive statistics on the hourly and daily water consumption in addition to its profile plots. The best probability distribution fitting was also determined. To assess the differences in water consumption due to de pandemic, the Wilcoxon-Mann-Whitney test was employed and a Generalized Linear Model with mixed effects was fitted to the data. The Lognormal distribution was shown to be the most appropriate to model the water consumption data. Due to the COVID-19 pandemic, the two daily peak consumption periods changed from 12 h to 15 h and from 19 h to 21 h. The COVID-19 pandemic also impacted daily water consumption, leading to a small, yet significant, increase in demand in the first quarter of the pandemic period.

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Resumen El daño ambiental que se ha venido provocando a causa de la actividad humana es preocupante, razón por la cual se ha identificado como una de las posibles soluciones tener un comportamiento proambiental. Sin embargo, se ha visto que hay barreras psicológicas que impiden o dificultan esta conducta. Por este motivo, con el fin de tener un instrumento que permita evaluar estas barreras psicológicas en nuestro contexto, el objetivo de la presente investigación fue realizar la adaptación de la escala Dragons of Inaction Psychological Barriers (DIPB) en población colombiana. La muestra estuvo compuesta por 810 estudiantes universitarios de Bogotá y Chía, Colombia; 367 hombres y 443 mujeres con edades entre los 15 y los 48 años (M = 19.67, DE = 2.414). En general, se realizó un análisis factorial exploratorio y un análisis factorial confirmatorio, con los cuales se comprobó la existencia de una estructura de cinco factores con 20 ítems; se realizaron análisis de reactivos y fiabilidad que demostraron que el instrumento tiene una alta consistencia interna; y se llevaron a cabo dos estudios de invarianza, con los que se demostró que la estructura factorial es invariante para todos los grupos de estudio. Además, se realizó la baremación del instrumento total. En conclusión, esta adaptación del DIPB presenta adecuada validez y fiabilidad, y permite guiar futuras investigaciones acerca de las barreras de inacción en el contexto latinoamericano, a la vez que aporta un insumo para realizar un primer diagnóstico de este constructo en Colombia.

Abstract The environmental damage that has been generated by human activity is a cause for concern, so pro-environmental behavior has been identified as one of the possible solutions. However, it has been seen that there are psychological barriers that prevent or hinder this behavior. For this reason, in order to have an instrument to evaluate these psychological barriers in our context, the objective of this research was to adapt the Dragons of Inaction Psychological Barriers (DIPB) scale to the Colombian population. The sample was made up of 810 university students from Bogotá and Chía, Colombia; 367 males and 443 females between 15 and 48 years of age (M = 19.67, SD = 2.414). In general, an exploratory factor analysis and a confirmatory factor analysis were carried out, which demonstrated the existence of a five-factor structure with 20 items. Item and reliability analyses were performed, which demonstrated that the instrument has a high internal consistency; and two invariance studies were carried out, which showed that the factor structure is invariant for all study groups. In addition, the total instrument was scored. In conclusion, this adaptation of the DIPB presents adequate validity and reliability, and allows guiding future research on inaction barriers in the Latin American context, while providing an input for a first diagnosis of this construct in Colombia.

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This article aims to analyze the relationship between practices of the self and pro-environmental behavior in the daily life of ecovillages. We rely on Foucault's notion of practices of the self to understand the changes in the behavior of the inhabitants of ecovillages regarding the environment. We made participant observations in two ecovillages in Switzerland and one in Brazil. The analyses show that the presence or absence of practices of the self in each ecovillage led to different pro-environmental subjectivation: passive-structural, active-individual, and active-structural. From these different positions, each community achieved different degrees of preservation of the environment. The results provide evidence that practices of the self are relevant factors for the inhabitants of ecovillages to develop pro-environmental behaviors.

Este artigo tem como objetivo analisar a relação entre as práticas de si e o comportamento pró-ambiental no cotidiano de ecovilas. Nos apoiamos na noção de Foucault de práticas de si para compreender as mudanças no comportamento dos habitantes das ecovilas em relação ao meio ambiente. Fizemos observações participantes em duas ecovilas na Suíça e uma no Brasil. As análises mostram que a presença ou ausência de práticas de si em cada ecovila levou a diferentes subjetivações pró-ambientais: passivo-estrutural, ativo-individual e ativo-estrutural. A partir dessas diferentes posições, cada comunidade alcançou diferentes graus de preservação do meio ambiente. Os resultados fornecem evidências de que as práticas de si são fatores relevantes para que os habitantes das ecovilas desenvolvam comportamentos pró-ambientais.

Este artículo tiene como objetivo analizar la relación entre las prácticas de sí y el comportamiento proambiental en la vida diaria de las ecoaldeas. Nos basamos en la noción de prácticas de sí de Foucault para comprender los cambios en el comportamiento de los habitantes de las ecoaldeas con respecto al medio ambiente. Hicimos observaciones de los participantes en dos ecoaldeas de Suiza y una de Brasil. Los análisis muestran que la presencia o ausencia de prácticas de sí en cada ecoaldea dio lugar a una subjetivación proambiental diferente: pasivo-estructural, activo-individual y activo-estructural. Desde estas diferentes posiciones, cada comunidad logró diferentes grados de preservación del medio ambiente. Los resultados proporcionan evidencia de que las prácticas de sí son factores relevantes para que los habitantes de las ecoaldeas desarrollen comportamientos proambientales.

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Introduction: Microplastics (MP) threaten all organisms worldwide. MP are produced directly as microbeads in cosmetics and hygiene products, or indirectly from breakage of larger plastics. The control of MP requires consumers' engagement to refuse products containing microbeads. Methods: We conducted a survey on 572 university students from Mexico and Spain, two countries where microbeads are not banned yet. More strict laws for plastic control areenforced in Mexico than in Spain. Results: Controlling for age and education, despite knowing less about MP, Mexicans checked for microbeads on product labels more frequently than Spaniards, and desired to reduce MP consumption more. A stronger correlation between individual awareness and willingness of MP control was found for Mexican than for Spanish students. Discussion: Perhaps more strict legislation against plastics creates an environment favorable to MP control. Unclear statement of microbeads on labels was the main reason for not checking microbead contents; environmental education and a stricter control of plastics and MP were identified as necessary policy changes in the two countries. Corporation engagement on clearer product labeling is also suggested.

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Resumen El presente estudio tuvo como objetivo adaptar y aportar evidencias preliminares de validez de la Escala de teoría cultural de cosmovisiones ambientales en el contexto latinoamericano. Se analizaron evidencias de validez de contenido mediante el juicio de cuatro expertos, validez discriminante y convergente, estructura interna a través de análisis factorial exploratorio y confirmatorio, y consistencia interna a través del coeficiente Omega. Mediante un muestreo no probabilístico por conveniencia, se seleccionaron 500 participantes en edad adulta que residían en la región del Ñuble, Chile. Se obtuvo una versión revisada y adecuada lingüísticamente del instrumento, que presentó coeficientes de concordancia de Kappa que fluctuaron entre considerable y casi perfecto en cuanto a su contenido. Los análisis estadísticos dan cuenta de la idoneidad del instrumento de 15 ítems y un análisis factorial confirmatorio que apoya la estructura interna de cuatro factores (individualismo, igualitarismo, jerarquismo y fatalismo); igual que la versión original. Los coeficientes de consistencia interna fueron aceptables para las cuatro subescalas. Respecto a la validez discriminante se obtuvieron medidas de varianza extraída adecuadas para igualitarismo, jerarquismo y fatalismo (sólo individualismo presentó valores levemente bajo lo esperado), y respecto a la validez convergente se obtuvieron valores adecuados en fiabilidad compuesta para los cuatro factores. Estos hallazgos avalan el uso de la versión en español de la Escala de teoría cultural de cosmovisiones ambientales en población de habla hispana, contribuyendo a la potencial ampliación de estudios socioculturales sobre el medioambiente en Latinoamérica.

Abstract The objective of this study was to adapt and provide preliminary validity evidence of the cultural theory and environmental worldviews scale in the Latin-American context. Content validity evidence was assessed by the judgment of four experts, discriminant and convergent validity, internal structure through exploratory and confirmatory factor analysis, and internal consistency using the omega coefficient. The sample consisted of 500 participants from the Ñuble region, Chile. Regarding the results, a revised and linguistically adapted version of the instrument was obtained, which presented a kappa coefficient ranging from substantial to almost perfect regarding the content. The statistical analysis shown the adequacy of the 15-item instrument and a confirmatory factor analysis which supported the four-factor internal structure (individualism, egalitarianism, hierarchy, and fatalism), as in the original version. The internal consistency assessed using the Omega coefficient was acceptable for the four subscales. Regarding discriminant validity, adequate average variance extracted was obtained for egalitarianism, hierarchy, and fatalism (only individualism presented values slightly lower than expected), while convergent validity showed adequate composite reliability values for the four factors. These findings support the use of the Spanish version of Cultural Theory scale of and Environmental Worldviews in Spanish speaking population, contributing to potential further sociocultural studies about the environment in Latin America.

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Resumen Los avances científicos, tecnológicos y los modelos de desarrollo social y económico actuales ponen de manifiesto la influencia negativa del ser humano sobre el medio ambiente. La educación universitaria resulta indispensable para la difusión de conocimientos y promoción de comportamientos más solidarios y menos perjudiciales con el medio ambiente. La presente investigación tuvo como objetivo determinar la relación del conocimiento ambiental (CA) y el comportamiento proambiental (CPA) de estudiantes universitarios y su manifestación según las áreas de conocimiento, en una institución de educación superior en Colombia. Se realizó un estudio comparativo con diseño transversal, utilizando un muestreo dirigido, conformado por 991 estudiantes de diferentes carreras universitarias. Se aplicó el Índice de Comportamiento Proambiental (ICP) que evalúa creencias, normas subjetivas e intención de comportamiento proambiental y la Escala Diagnóstica de Conocimiento Ambiental para Latinoamérica (ECLA) que evalúa conocimiento del sistema, de las acciones, de la efectividad, y de problemas ambientales. Se evidenciaron asociaciones positivas y significativas entre el CA y las escalas del ICP; y se encontraron diferencias significativas según las diferentes áreas de conocimiento (p< .05). Los estudiantes de Ciencias Sociales y Humanas presentaron mayores puntajes en CA y CPA respecto a los de otras áreas. Se concluye que los estudiantes poseen creencias, actitudes y acciones positivas hacia el medioambiente, no obstante, su nivel de CA es bajo. Las universidades cuentan con el reto de promover una formación que impacte en el bienestar humano-ambiente.

Abstract Scientific and technological advances and current models of social and economic development highlight the negative influence of human beings on the environment. Higher education is essential for knowledge dissemination and the promotion of behaviors that are more supportive and less harmful to the environment. This research aimed to determine the relationship between environmental knowledge (CA) and pro-environmental behavior (CPA) of undergraduate students and their manifestation according to the areas of knowledge in a higher education institution in Colombia. A comparative study under a cross-sectional design was carried out, using a directed sampling, made up of 991 students from different undergraduate programs. The Pro-Environmental Behavior Index (ICP) was administered, which evaluates beliefs, subjective norms and intention of pro-environmental behavior, and the Diagnostic Environmental Knowledge Scale for Latin America (ECLA), which assesses knowledge of the system, actions, effectiveness, and environmental issues. Positive and significant associations were evidenced between the AC and the ICP scales; and significant differences were found according to the different areas of knowledge (p< .05). The students of Social and Human Sciences showed higher scores in CA and CPA compared to those of other areas. It is concluded that students have positive beliefs, attitudes, and actions towards the environment, however, their AC level is low. Universities have the challenge of promoting training that impacts human-environment well-being.

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Living in rural areas has been described a driver for behaving in a pro-environmental way, mainly due to the more frequent contact with nature that people from rural areas have. However, the processes that link living in a rural area and behaving in a more ecological manner have not been systematically studied. Moreover, most studies have focused on adults living in developed countries. Given the importance that the actions conducted by people in developing countries have for the future of the environment, as well as the relevance of children's pro-environmentalism for nature conservation, we present a brief research report examining the relationship between Mexican children's place of residence and self-reported pro-environmental behavior (PEB). Participants were 200 children from Mexican rural areas (<1,000 inhabitants) and 200 from a Mexican urban city (>150,000 inhabitants). Children were between 9 and 12 years old. Children's connection to nature was considered as a mediator in the relationship between children's place of residence and PEB. Our findings revealed that rural children hold a stronger sense of connection to nature and behave in a more pro-environmental way than urban children. In addition, place of residence was directly and positively linked to their PEBs, and this relationship was mediated by children's connection to nature. The relationship between connection to nature and PEB was stronger for girls than for boys. The model explained 45% of the variance of children's self-reported PEBs.

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BACKGROUND: Monovalent acidic pesticide sorption can be determined for any soil pH if the dissociation constant of the compound is known, and sorption coefficients are available for at least two different pH values, measured in a wide enough range to enable estimating both neutral and anionic form coefficients. Sorption estimates have also been made from a single sorption coefficient available, assuming a non-compound specific value of the anionic form sorption coefficient or considering a generic ratio between sorption coefficients of the two forms. A compound-specific procedure for adjustment of parameters of the equation for estimating sorption of monovalent acidic herbicides at different pH levels, from a single sorption coefficient, is proposed and evaluated. RESULTS: The quality of fits was good for sorption of all three herbicides studied, especially for 2,4-D and flumetsulam at pH above 5, even for diverse soils and experimental procedures and conditions. The best fits resulted in the following ratios of theoretical maximum organic-carbon sorption coefficients for neutral and anionic forms (Kocn':Koca'): 440:1 for 2,4-D; 132:1 for flumetsulam; and 55:1 for sulfentrazone. CONCLUSION: The ratios of theoretical maximum sorption coefficients for neutral and anionic forms (Kocn':Koca') are compound-specific, thus this procedure should also be applied to pH-sorption datasets for other acidic pesticides to provide the respective ratio between the theoretical maximum sorption coefficients, instead of using generic assigned values. More calibration research is recommended and validation of this approach is required to demonstrate applicability of the method. © 2020 Society of Chemical Industry.

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Resumen El objetivo del presente estudio fue establecer las características del comportamiento proambiental de los estudiantes universitarios colombianos, esto es, identificar las actitudes, creencias, valoraciones, prácticas y conocimientos ambientales de estudiantes colombianos de diferentes carreras universitarias. Para ello se realizó un estudio descriptivo-correlacional de corte transversal con una muestra de 1503 estudiantes de diferentes carreras universitarias en cinco ciudades colombianas, con una probabilidad de incidencia de .5, 95 % de confianza y un error del 2.5 %. Los participantes fueron seleccionados aleatoriamente al interior de cada universidad y seles aplicaron el Inventario de Comportamiento Proambiental (ICP) y el Test de Conocimiento Ambiental (TCA), este último desarrollado específicamente para propósitos de la presente investigación. Se encontró que los estudiantes encuestados poseen actitudes y creencias ambientales positivas en la mayoría de las dimensiones. El nivel de conocimiento ambiental de los estudiantes en las cinco ciudades seleccionadas es bajo. Si bien no se observaron diferencias significativas entre las carreras respecto a las creencias, valoraciones, acciones y conocimientos ambientales, paradójicamente los estudiantes de ciencias ambientales ocuparon lugares inferiores a los que estudian ciencias económicas y administrativas. Se puede concluir que existen diferencias según la ciudad en las creencias, valoración, conocimiento y acciones ambientales de los estudiantes encuestados. El reporte de acciones ambientales presenta un perfil controversial pues al mismo tiempo las personas realizan comportamientos proambientales y antiambientales. Las instituciones universitarias y el gobierno tienen el desafío de lograr que la educación ambiental muestre los resultados esperados para el cumplimiento de las metas ambientales del país y del mundo.

Abstract The objective of the present study was to establish the characteristics of the pro environmental behavior of Colombian university students; that is, to identify the attitudes, beliefs, valuations, practices and environmental knowledge of Colombian students from different university careers. For this purpose, a cross-sectional descriptive-correlational study was carried out with a sample of 1503 students from different university careers in five Colombian cities, with an incidence probability of .5, 95 % confidence and an error of 2.5 %. The participants were randomly selected within each university and the questionnaires applied were the Pro environmental Behaviour Inventory (ICP) and the Environmental Knowledge Test (TCA); the latter was developed specifically for the purposes of this research. The students surveyed were found to have positive environmental attitudes and beliefs in most dimensions. The level of environmental awareness of students in the five selected cities is low. Although no significant differences were observed between the careers with respect to beliefs, valuations, actions and environmental knowledge, paradoxically the students of environmental sciences occupied inferior places to those who study economic and administrative sciences. Thus, in the analysis of specific items it was evidenced that the students of environmental sciences develop diverse anti environmental actions, in a similar way to the behavior patterns of the students of the other researched careers. With respect to the region, the results show that it is possible to conclude that there are differences according to the city with respect to the beliefs, valuation, knowledge and environmental actions of the students surveyed. Among the findings it is worth highlighting the results of Bucaramanga in terms of the report of environmental actions and the highest average in the TCA observed in that city. Similarly, Cali stands out along with Bucaramanga in its results, while Medellín obtained the lowest scores in environmental knowledge. Finally, in the report on environmental actions in university students, contradictory results are observed, given that it presents a controversial profile because people perform pro-environmental and anti-environmental behaviors at the same time, with positive environmental attitudes and beliefs in accordance with these attitudes. Regarding the knowledge about the environment, in the descriptive results the average of the test was 12 points, which means that the students failed the test. The multivariate analysis showed that the theoretical model on which the construction of the ICP was based and the instruments from which items were selected for its conformation, apparently has great predictive power with respect to the verbal report of environmental actions; however, the TCA, a test constructed specifically for this research, would covariate with almost all the factors of the ICP but does not predict causally the actions reported by the students. In general, this study shows that university institutions and the Colombian government have the challenge of ensuring that environmental education achieves the expected results for the fulfillment of both the country and the world's environmental goals. The results also demonstrates the need to articulate policies, actions and regulations to improve the quality of environmental education in universities, as well as to implement citizen behavior programs that promote responsible consumption, given that knowledge does not correlate with effective actions in terms of public services, green brands and solid urban waste management, among other areas.

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As crenças ambientais são construtos importantes para os estudos das relações pessoa-ambiente, visto que estas crenças orientam os comportamentos ecológicos. O objetivo deste trabalho foi analisar as crenças ambientais presentes em jovens engajados em coletivos socioambientais. Participaram do estudo 19 moças e rapazes integrantes de quatro coletivos socioambientais da região metropolitana de Manaus, Amazonas, Brasil. Os participantes responderam a um questionário com perguntas sobre o seu perfil sociodemográfico e uma escala de crenças ambientais. A partir da análise estatística, os resultados mostraram que esses jovens têm crenças predominantemente ecocêntricas e que o engajamento no grupo os ajuda a fortalecer seu próprio comportamento em relação ao cuidado ambiental e a crenças ambientais pessoais.

Environmental beliefs are important constructs for the study of human-environment relations, since these beliefs guide ecological behavior. The objective of this study was to analyze the environmental beliefs present in young people engaged in social and environmental groups. Nineteen youngsters, actuating in four sócio-environmental groups, participated in the study, at the metropolitan region of Manaus. Participants answered a questionnaire with questions about their sociodemographic profile and a scale of environmental beliefs. From the statistical analysis, the results showed that these young people have predominantly ecocentric beliefs and that group engagement helps them strengthen their own behavior in relation to environmental care and personal environmental beliefs.

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Resumen El propósito del estudio fue desarrollar una escala que mida la expectativa de comportamiento ambiental de otros y observar si hay relación con la conducta proambiental autorreportada. Se generaron 13 reactivos de respuesta tipo Likert, aplicados a una muestra de 218 adultos jóvenes mexicanos. El análisis factorial exploratorio muestra una estructura bifactorial, que distingue entre la expectativa de comportamiento proambiental y antiambiental, cuyos índices de consistencia interna fueron alfa = 0.77 y alfa = 0.79, que explican el 57.65% de la varianza. Se les aplicó también una escala de conductas proambientales. Mediante un modelo de ecuaciones estructurales se mostró que el factor de expectativa de comportamiento en estudio tuvo un efecto significativo sobre la conducta proambiental. Los resultados muestran evidencia de una escala bifactorial con propiedades psicométricas aceptables.

Abstract The purpose of this study was to develop an instrument to measure expectation of others' environmental behavior, and notice if there is a relationship between this variable and self-report of pro-environmental behaviors. Thirteen items Likert-type were development, and was applied to a sample of two hundred eighteen Mexican young adults. The exploratory factor analysis shows a bi-factorial structure distinguishes between, expectation of pro-environmental behavior, and expectation of anti-environmental behavior. Their Cronbach's alpha score was 0.77 and 0.79; both factors accounted for 57.65% of the variance. A scale of pro-environmental actions was applied too. A structural equation model showed that the factor expectation of pro-environmental behavior has a significant effect on pro-environmental actions. The result shows evidence for bi-factorial scale with acceptable psychometrics properties.

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RESUMO Este artigo busca investigar o papel do corpo na adoção de práticas sociais sustentáveis. Apoiando-se nas Teorias das Práticas Sociais, aponta para o papel da rotinização na manutenção de estilos de vida insustentáveis. Com base em um estudo de caso realizado em uma ecovila brasileira, demonstra que a existência de valores ambientais não leva as pessoas a automaticamente modificarem os seus comportamentos. A mudança das práticas cotidianas exige a modificação de hábitos e automatismos incorporados pela socialização na sociedade de consumo. A incorporação intencional de novas práticas é um processo que demanda tempo e um trabalho de percepção consciente, sendo facilitada quando existe um esforço explícito e articulado de mudança, compartilhado por um grupo social.

RESUMEN Este artículo pretende investigar el papel del cuerpo en la adopción de prácticas sociales sostenibles. Basándose en las Teorías de las Prácticas Sociales, señala el papel de la rutinización en el mantenimiento de estilos de vida insustentables. Basado en un estudio de caso realizado en una ecoaldea brasilera, demuestra que la existencia de valores ambientales no conduce a las personas a modificar automáticamente sus comportamientos. El cambio de las prácticas diarias exige la modificación de hábitos y automatismos incorporados por la socialización en la sociedad de consumo. La incorporación intencional de nuevas prácticas es un proceso que requiere tiempo y un trabajo de percepción consciente, facilitada cuando hay un esfuerzo explícito y articulado para el cambio, compartido por un grupo social.

ABSTRACT This article investigates the role of the body in the adoption of sustainable social practices. Based on Social Practice Theories, it indicates the role of routinization in the maintenance of unsustainable lifestyles. Grounded in a case study carried out in a Brazilian ecovillage, it shows that the existence of environmental values does not automatically lead people to change their behaviors. The transformation of daily practices demands a change in habits and automatisms embodied through one's socialization in the consumer society. The intentional embodiment of new practices is a process that demands time and a work of conscious perception, facilitated when there is an explicit and articulated change effort, shared by a social group.

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Variations in soil properties with depth strongly influence the degradation and persistence of herbicides, underlining the importance of studying these processes in soil horizons with distinctively different properties. The persistence of the herbicides acetochlor, atrazine, and S-metolachlor was measured in samples of the A, B, and C horizons of 2 Typic Argiudolls from Argentina under no-till management. The soils studied differed in soil organic carbon (OC) content, pH, particle size distribution, and structure. Quantification of herbicides in soil was done through high-performance liquid chromatography with diode array detector. There were interactions of herbicide × horizon (p < 0.01) that resulted in degradation rates (k) of all herbicides decreasing, and their corresponding dissipation half-life (DT50) values increasing, with soil depth. Herbicide persistence across all soils and horizons ranged from 15 to 73 d for acetochlor, 13 to 29 d for atrazine, and 82 to 141 d for S-metolachlor, which had significantly (p < 0.01) greater persistence than atrazine and acetochlor. The DT50 values of herbicides were negatively correlated with the contents of OC (correlation coefficients ranging from -0.496 to -0.773), phosphorus (-0.427 to -0.564), and nitrogen-nitrate (-0.507 to -0.662), and with microbial activity (-0.454 to -0.687) and the adsorption coefficient (-0.530 to -0.595); DT50s were positively correlated with pH (0.366 to 0.648). Adsorption was likely the most influential process in determining persistence of these herbicides in surface and subsurface horizons. The present study can potentially improve the prediction of the fate of acetochlor, atrazine, and S-metolachlor in soils because it includes much needed information on the degradation of the herbicides in subsurface horizons. Environ Toxicol Chem 2017;36:3065-3073. © 2017 SETAC.

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RESUMEN La discrepancia entre el decir-hacer ha estado en el centro del debate al estudiar el comportamiento proambiental. Este artículo hace una revisión sistemática sobre la literatura disponible alrededor del estudio de las actitudes ambientales en donde se pone en evidencia la inconsistencia en los resultados de este enfoque para generar cambios duraderos en el comportamiento de las personas. Se propone como alternativa un cambio en la orientación de la investigación y la práctica educativa ambiental a partir de la regulación verbal y en particular del seguimiento de reglas proambientales para reducir la brecha entre lo que se dice y lo que se hace en pro de la resolución de los problemas vinculados al medio ambiente. Se analizan las implicaciones de esta propuesta en la educación ambiental y se plantean algunos derroteros para su desarrollo metodológico.

ABSTRACT The discrepancy between what people say and what people do has been at the centre of debate in the study of pro-environmental behaviour. This article presents a systematic review of the available literature on the study of attitudes to the environment, which shows an inconsistency in the results of this approach to generate lasting changes in people's behaviour. A change is proposed in the orientation of research and environmental educational practice from verbal regulation, in particular the following of pro-environmental rules to reduce the gap between what is said and what is done in order to resolve problems related to the environment. The implications of this proposal on environmental education are analysed, as well as some paths for methodological development of this proposal.

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Harvesting and trading non-timber forest products is advocated as a win-win strategy for conservation and development, yet it can produce negative ecological and socioeconomic impacts. Hence, monitoring exploitation outcomes is essential, and participatory monitoring has been suggested to be the most suitable approach. Among possible approaches, participatory monitoring is preferred because it is likely to increase people's awareness and beliefs regarding impacts or potential impacts, thus inducing behavioral changes, although the evidence in this regard is contradictory. We therefore evaluated whether people's beliefs about the potential ecological and socioeconomic impacts of non-timber forest product exploitation increased their likelihood of volunteering to monitor. We studied a community of forest inhabitants in the Brazilian Amazon who harvested and traded a commercially important non-timber forest product. Two methods of data gathering were employed: (i) a survey of 166 adults (51 households) to evaluate people's beliefs and their stated intention to engage in four different monitoring tasks and (ii) four pilot monitoring tasks to evaluate who actually participated. Based on mixed-effects regressions, the results indicated that beliefs regarding both types of impacts could predict participation in certain tasks, although gender, age and schooling were occasionally stronger predictors. On average, people had stronger beliefs about potential socioeconomic impacts than about potential ecological impacts, with the former also predicting participation in ecological data gathering. This finding reinforces the importance of monitoring both types of impacts to help achieve the win-win outcomes originally proposed by non-timber forest product trade initiatives.

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En este trabajo se analiza la eficacia de las tácticas de influencia social basadas en principios psicológicos (compromiso/coherencia) y culturales (identitario, conspicuo, estatutario) para el favorecimiento de la intención de conducta proambiental. Se realizó un estudio experimental mediante un diseño factorial 2 × 5 donde las variables fueron el tipo de táctica de influencia discursiva manipulada en cada grupo experimental y el género. La variable dependiente midió la intención de conducta proambiental relacionada con la reducción del desperdicio, gasto desmedido o innecesario de agua, gas y electricidad en el hogar. Se comprobó la eficacia de las tácticas para el favorecimiento de la intención de comportamiento proambiental y se encontraron diferencias significativas entre hombres y mujeres en los mensajes basados en los principios de coherencia y consumo conspicuo.

This paper analyzes the effectiveness of social influence tactics based on both psychological (commitment/consistency), and cultural principles (identitarian, conspicuous, statutory), for favoring the intention of pro-environmental behavior. An experimental study was conducted using a 2x5 factorial design, where the variables were the type of influence tactics manipulated by discourse in each experimental group and gender. The dependent variable measured the intention of pro-environmental behavior related to reducing waste, wasteful or unnecessary expense of water, gas and electricity at home. The effectiveness of the tactics for favoring the intention of pro-environmental behavior is verified, and significant differences are found between males and females in messages based on principles of coherence and conspicuous consumption.