By Ash Blankenship
Cities can produce a lot of heat. In New York City, summer temperatures can feel tens of degrees hotter. In Atlanta urban heating can alter regional weather patterns. In fact the heat island effect can increase the surrounding temperature by up to 22 degrees Fahrenheit. Asphalt, buildings and cars all produce heat, which has drastic effects on city denizens. But as technologies improve, cities may soon be able to capture the heat produced by the heat island effect to produce renewable energy.