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Environmental issues refer to factors that will affect our development and survival on this Earth which includes topics like ecology, population, climatology, etc.  The high resolution satellite image offer by Imaging has a spatial resolution of 2.5m for panchromatic mode and 5m for multispectral mode, which is sufficient for urban applications. With proper image processing techniques like edge enhancement, image fusion, or image segmentation, a lot of information can be derived for micro-level urban applications like road routing, building height estimation, telecommunication network planning, local population estimation etc.