This paper investigates the use of internet discussion forums and social media as sources of discursive practice, particularly in the context of climate change and sustainable lifestyles. By analyzing textual data from a Guardian newspaper article and the ensuing online discussions, the study reveals various social constructions of climate change and sustainability. It highlights conflicting views on the human impact on climate change, the credibility of global warming data, and the adoption of sustainable lifestyles. The paper advocates for environmental social scientists to leverage virtual forums and social media as valuable research tools, recognizing their role as cultural artifacts and sites for immediate, anonymous discourse.