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Investigation by ProPublica and NPR reveals failures of organisation to meet basic needs after storm, as well as allegation that 40% of emergency vehicles were diverted to press conferences
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Despite NOAA's forecast of 'an extremely active season this year', hurricane yet to form as season enters its second half
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Figures show 2012 was a full degree Fahrenheit hotter than 1998 record – and scientists say they expect more of the same
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Laboratory proves globs of oil found on two Louisiana beaches after hurricane Isaac came from the 2010 Gulf oil spill
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Officials report weathered oil in areas struck by the hurricane that also were badly damaged after the Deepwater Horizon spill
Hurricane Sandy: 10 statistics that place this powerful storm in perspective
Harry Enten: Overhyped? Hardly – this storm system is massive and its effects will be felt for days by much of the US east coast