Malaysia still lacks behind when comes to efficient public transportation systems, resulting in an increased use of private vehicles while contributing greatly to carbon (CO2) emissions in the atmosphere. Apart from climate change, inhalation of CO2 especially during traffic congestions can lead to serious respiratory health implications. According to World Bank, Malaysia produces more CO2 emissions than almost half of OECD countries and 3.0 MT/capita more than the World average of 5.0 MT/capita. The countries with highest CO2 emissions per capita is Luxembourg (18.7 MT/capita), followed by the U.S. (16.4 MT/capita), Australia (16.3 MT/capita) and Estonia (15.1 MT/capita). Brazil records one of the lowest CO2 emissions, at only 2.5 MT/capita. Aside from Singapore, Malaysia produced higher levels of carbon emissions (7.5 MT/capita) as compared to other countries in the region, i.e. Vietnam (1.8 MT/capita), Indonesia (2.4 MT/capita) and Thailand (4.5 MT/capita), despite smaller population size. Thus, the availability of green areas come into play in urban development in order to counter CO2 emissions while reducing heat generated by greenhouse gases in order to provide better quality air for city inhabitants.