"The U.S. Justice Department filed a joint lawsuit with Arkansas on Thursday against oil producer Exxon Mobil Corp over the pipeline spill in March of thousands of barrels of heavy Canadian crude oil in a suburban neighborhood."

"Rising seas and increasingly severe weather are expected to increase the areas of the United States at risk of floods by up to 45 percent by 2100, according to a first-of-its-kind report released by the Federal Emergency Management Agency on Wednesday. These changes could double the number of flood-prone properties covered by the National Flood Insurance Program and drastically increase the costs of floods, the report finds."

"Severe weather cost the nation $110 billion in damages in 2012, the second-costliest in history, according to disaster information released Thursday by the National Oceanic and Atmospheric Administration."

"Mayor Michael R. Bloomberg on Thursday proposed major changes to New York City’s building code, saying Hurricane Sandy showed that both commercial and residential properties needed additional safeguards against severe weather."

"Two people have been killed by the most destructive wildfire in Colorado history, law enforcement officials said on Thursday, as crews fought to keep the fierce, wind-whipped blaze from roaring into the outskirts of Colorado Springs."

"GEISMAR, La. -- A bomb-like explosion ignited a raging fire at the Williams Olefins chemical plant early Thursday, killing one man and injuring dozens as terrified workers sought shelter from the sprawling flames."

"Federal regulators [Wednesday] released an order granting Exxon Mobil Corp. its second extension to finish investigating the cause of a pipeline rupture that spilled an estimated 5,000 barrels of Canadian oil sands crude in the Arkansas suburb of Mayflower 10 weeks ago."

"BLACK FOREST, Colo. -- Shifting winds whipped flames through the winding roads and hills of Black Forest on Wednesday, forcing new evacuations and sending a plume of thick smoke across the Front Range."

"CHICAGO — A massive line of storms packing hail, lightning and tree-toppling winds rolled through the Midwest Wednesday evening driving people into basements for shelter, tearing down power lines and causing flooding in low-lying areas."

"Former TransCanada Corp. employee Evan Vokes' impassioned testimony before a Canadian Senate committee last week painted 'a very, very bleak picture of the pipeline industry in Canada, and probably by extension, the States,' according to Sen. Betty Unger."