http://www.helium.com/knowledge/258727-how-to-survive-a-heat-wave-when-you-live-in-a-city.xml Helium.com > Atmosphere & Weather > How to survive a heat wave when you live in a city en-us Copyright Helium.com Sun, 26 Jul 2009 18:46:05 GMT Sun, 26 Jul 2009 18:46:05 GMT