The main objective of this research is to examine the effect of environmental concern, subjective environmental knowledge towards green purchasing intentions. Also, this study has examined the moderation role of green skepticism towards these relationships. The population of this research is consumers of green purchasing in Saudi Arabia’s manufacturing industry. The quantitative approach using convenience sampling has been used for data collection. The PLS-SEM using SmartPLS 3.2.8 was used. Environmental concern has a significantly positive effect on green purchasing intention while significantly negative effect on subjective environmental knowledge and lastly, subjective environmental knowledge has significantly positive effect on green purchasing intention. Furthermore, green skepticism does not moderate the effect of subjective environmental knowledge on green purchasing intention and the effect of environmental concern on subjective environmental knowledge; however, green skepticism significantly decreases the effect of environmental concern on green purchase intention. The managers are recommended to provide environmental programs towards consumers that can increase their environmental concerns and lead to gaining proper knowledge and awareness.

This paper aims to evaluate the awareness and behavior of using environmentally friendly products in case of plastic straws using the theory of planned behavior. Exploratory Factor Analysis (EFA) and linear regression analysis were employed to determine and evaluate the influential factors on the intention of using environmentally friendly straws and alternatives among young people in Mekong Delta provinces. The data were randomly collected from 150 interviewees as research respondents who are aged from 18 to 33. The results show that the intention to use environmentally friendly straws depends on factors including (1) Attitude, (2) Environmental awareness, (3) Subjective norm, (4) Perceived behavioral control and (5) Perceived effectiveness.

The program to reduce plastic waste is supported by all sectors of businesses, through some efforts to prevent using plastic bags in every store shopping and prompt using better alternatives. This study aims to find out whether the application of the theory of planned behavior departs from the knowledge of the influence of environmental awareness and leads to interest in the use of reusable bags. Quantitative methods used in this study includes the determination of samples with non-probability techniques, namely purposive sampling. The research instrument was an online questionnaire of 300 respondents in Bali, who had never used a repetitive shopping bag. Data were analyzed using Structural Equation Modeling with the SmartPLS application. The application of the theory of planned behavior shows that testing knowledge of the environment and environmental stewardship gives a positive attitude and becomes a control behavior and interest in the use of reusable bag products. However, it is different from Subjective Norms which do not have a significant influence on the interest in using reusable bags. So, it is a concern for the government to always provide socialization, knowledge and environmental awareness about the importance of protecting the environment by using non-disposable shopping bags, and also business owners or marketing management to provide more reusable bags.

Consumers’ consumption culture of the twentieth century has culminated into environmental degra-dation and its adverse consequences on health and the ecosystem. Despite these concerns, consumers still fail to purchase environmentally-friendly or green products due to the lack of awareness and belief about the benefits of such products. This study seeks to understand consumers’ attitude towards green products by investigating the effect of consumers’ green product knowledge, green product belief, environment affect and environmental concern on green product purchase intention drawing on the cognitive-affect-behaviour model. Multiple regression analysis was used to analyse the data from 348 Health workers from a South-eastern Health Institution in Nigeria and examined the proposed hypotheses. The result shows that green product purchase intention was significantly influenced by green product knowledge and environmental affect but no significant effect was found for green product belief and environmental concern. Environmental effects had the most im-pact on green product purchase intention. Therefore, it is recommended that marketers focus their marketing campaigns towards educating consumers on the availability and benefits of green prod-ucts by using eco-labels and emphasizing the health and environment benefits of green products; appealing to consumers’ morals and emotions in marketing campaigns for green products to spur consumers’ interest in green products and adopting a green lifestyle.