Tracing Global Warming Path in Local Scale: Greenhouse Gas Emission or Land Use Changes?

Increasing mean atmospheric temperature is considered as an indicator of global warming and eventually climate change. Source of increasing atmospheric temperature is the accumulation of greenhouse gases. However, these emissions will affect atmosphere temperatures in a global scale and in long term. In smaller scale -both in spatial and time- land surface condition is probably the dominant factor compared to greenhouse gases emission. This paper attempted to analyze those two factors in local air temperature rise, using Bandar Lampung City, Indonesia as the study area. The results showed that N20 was the greenhouse gas that have closest connections to local air maximum temperature compared to CH4 and CO2. Related to different local surface condition, it was clear that business area of Bandar Lampung was the hottest local maximum temperature with maximum temperature difference 1.5 oC. It is convinced that greenhouse gases emission is the source of global temperature rising, however, understanding how local surface condition affected the air temperature would motivate public and local government to maintain vegetation area in a city.