As the heat rises you're left with a partially heated room and a worrying burning smell.

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"For the most part, they're places that are already open and they're designated for when the heat rises, " said New York Emergency Management spokeswoman Judith Kane.

CNN: Heat wave sweeps across U.S. Northeast

Residents are advised to call 311 or to go to their city's website online to find cooling centers and to get further information on how to keep cool as the heat rises.

CNN: Heat wave sweeps across U.S. Northeast

Gameloft, for example, has added MOGA support to key titles such as The Dark Knight Rises HD, Asphalt 7: Heat HD and Dungeon Hunter 3.

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As the air rises, it expands and cools, and water vapour condenses, releasing even more heat.

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