What are the environmental problems caused by infrastructure?

What are the environmental problems caused by infrastructure?|||Used like that, "infrastructure" is a very vague word which could be referring to all sorts of things. Resultant environmental problems would range between none whatsoever to significant. Your question, as phrased, has no particular meaning. For example, "infrastructure" includes an ordinary post box on some street corner and the entire road network of the world.|||In the built environment, rain cannot soak into the ground, and run-off tends to be channelised. Buildings also alter the flow of air, and create micro-climates. Roads cut ecological communities in half. Buildings also absorb heat in a different fashion to vegetation and soil. Marine structures like groins, harbours and piers alter the natural flow of the currents and change the way the sand builds up on the beaches - some areas may become starved of sediment, others overburdened. Just a few of the many complications.