This research aimed to investigate media exposure awareness knowledge attitude and behavior towards global warming and to study correlations among those factors that varied Bangkok metropolitan’s media exposure perception knowledge and attitude on global warming. The 1200 Bangkok residents were randomly selected from 12 districts out of 50 districts in Bangkok Municipality including 5 adjacent Provinces of Nakhon Pathom Pathum Thani Nonthaburi Samut Prakan and Samut Sakhon. The study found the following results: The media exposure behavior concerning global warming was in general rated in medium level. People were daily exposed to television yet other media: radio newspaper magazine billboard journal brochure internet and personal media were exposure 3-4 days a week. Most respondents said publicizing on global warming in Thailand was in medium level. Awareness attitude and behavior against global warming were generally in high level. The hypothesis testing showed that different gender career and housing varied the frequency of media exposure on global warming at statistical significance .05. Different gender education background and career varied awareness on global warming at statistical significance .05 Different age education background income and housing varied knowledge on global warming at statistical significance .05. Different gender age education background career income and housing varied attitude towards global warming at statistical .05. Different education background career and housing varied behavior against global warming at statistical significance .05. The exposure to media awareness and attitude of Bangkok metropolitan residents about global warming had positive correlation to behavior at statistical significance .05. However regarding to knowledge of global warming it resulted negative correlation to behavior at statistical .05.