Brunei is vulnerable to a number of environmental consequences brought on by climate change. The main dangers include loss of biodiversity, increasing sea levels, and air pollution in urban areas. Due to its low-lying topography and small population of 470,000, Brunei faces a serious sea level rise problem. Fossil fuels are also a key source of energy in Brunei and are an important export for the nation. Moreover, Brunei will lose more than two thirds of its growth in the gross domestic product (GDP) if the rest of the world switches away from fossil fuels, particularly crude oil.[1]