This cross country study examines the potential environmental predictors of consumers’ green behaviour. It uses consumer’s self reported environmental behavioural intentions and examines its potential influence on corporate practice of social responsibility (CSR). A conceptual model was developed and was subjected to empirical verification using survey research design. It was hypothesised that CSR improves green behavioural purchase intension. PLS was used to estimate the measure of respondents’ overall perception of green products and their intention to purchase. It was found that in both countries, Australia and Portugal, CSR influenced purchase intentions. In both cases there was evidence of association between CSR and the consumers’ intention to purchase environmentally safe products..