National (U.S.)

"CLARKSVILLE, Mo. -- The fast-rising Mississippi River was making travel difficult Saturday, both on the river and for those simply trying to get across it."

"TALLAHASSEE -- The state of Florida filed a lawsuit Saturday against the oil company BP and the cement contractor Halliburton over the Deepwater Horizon oil spill, becoming the fourth state to seek damages for the 2010 disaster."

"State and federal  investigators on Sunday began their  first in-depth look at the cratered epicenter of a fertilizer plant explosion that killed at least 14 people, including about 10 volunteer firefighters and the residents who tried to help them extinguish a fire at the site."

"The U.S. Federal Energy Regulatory Commission proposed to revise its cybersecurity standards for the nation’s electric grid, expanding the rules to more than 60 additional companies."

"CHARLESTON, W.Va. -- Coal operators can and should take more aggressive steps to reduce dust emissions from blasting and heavy equipment at mountaintop removal mines, according to new studies released this week as part of a controversial industry-funded research project."

"WASHINGTON -- A dozen states and cities and three major environmental groups have notified the Environmental Protection Agency that they plan to sue the regulator unless it issues final rules limiting greenhouse gas emissions from new power plants."

"U.S. construction workers, environmentalists and company executives squared off on Thursday at a raucous meeting on the Keystone XL oil pipeline, but it was unclear the gathering changed any minds on the controversial project."

"The Senate Energy and Natural Resources Committee today confirmed the nomination of Ernest Moniz to become the next secretary of Energy on a 21-1 vote."

"WEST — In this small, shattered town 80 miles south of Dallas, residents awaiting word on missing loved ones spent most of Thursday finding hope in not knowing for sure.

"A gluttonous predator is power-eating its way through reefs from New York to Venezuela. It's the lionfish."