"In what at least one expert is calling a 'very unusual' move, TransCanada Corp. is reportedly digging up and rebuilding dozens of sections of the already-completed part of the Keystone XL pipeline."

"The first tropical storm of the Atlantic hurricane season got a little stronger early Thursday as it headed toward Florida's western coast and a new tropical storm warning was issued for a swath of the U.S. East Coast."

A series of oil rigs in the Gulf of Mexico, damaged during a September 2004 hurricane, are still leaking in a "chronic" oil spill. SkyTruth brought the pollution to light using satellite imagery, aerial photography, and publicly available government data. The slicks are bigger than the company responsible is reporting.

"The federal government must spend at least $384 billion to improve the nation's drinking water infrastructure in order to ensure the safe delivery of water to Americans for the next 20 years."

"America's first offshore wind lease sale will take place in July, the Interior Department announced Tuesday. It's good news for the US wind industry, which is hoping to expand beyond land-based production."

"On Tuesday the Interior Department unveiled plans for the nation's first auction of offshore wind leases. It's more good news for the US wind industry, which installed a record amount of capacity in 2012, and received a one-year extension on the federal tax credits driving much of the industry's growth.

"A tornado that swept through Oklahoma on Friday was the widest tornado in American history, the National Weather Service said Tuesday."

"WICHITA, Kan. -- A Kansas farmer has sued seed giant Monsanto over last week's discovery of genetically engineered experimental wheat in an 80-acre field in Oregon, claiming the company's gross negligence hurt U.S. growers by driving down wheat prices and causing some international markets to suspend certain imports."

"Declaring a strong desire to deliver New Jersey voters an elected senator in short order, Gov. Chris Christie (R) announced Tuesday that he is setting a special election to fill the late-Sen. Frank Lautenberg's seat for October, with a primary slated for August."

"BEAUMONT, Texas -- The sound was deafening as workers sandblasted a section of the Gulf Coast Project, the southern installment of TransCanada Corp.'s Keystone XL Pipeline project."

"Hurricane season [began] Saturday, and the National Oceanic and Atmospheric Administration is forecasting an active season, with perhaps seven to 11 hurricanes."