People walk along 7th avenue in New York January 23, 2013. An Arctic blast gripped the U.S. Midwest and Northeast on Tuesday, with at least three deaths linked to the frigid weather, and fierce winds made some locations feel as cold as 50 degrees below zero Fahrenheit. (minus 46 degrees Celsius). REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENVIRONMENT SOCIETY TPX IMAGES OF THE DAY) Published: Led. 23, 2013, 3:24 odp. | Foto: Reuters