"Three Los Angeles council members want the city to pull pension money from the investment firms that own Tribune if they sell the Los Angeles Times to buyers who don’t support 'professional and objective journalism.' Councilman Bill Rosendahl says: 'Frankly what I hear about the Koch brothers, if it’s true, it’s the end of journalism.'"

"A federal jury didn't hear from prosecutors about toxic chemicals in the drinking water of south suburban Crestwood. Or about higher-than-normal cancer rates in the working-class village. But on Monday, the jury ensured that the only public official to stand trial in the tainted water scandal will be held accountable for a more than 20-year scheme to conceal the secret use of a Crestwood well — crimes uncovered by a 2009 Tribune investigation."

"Environmental groups on Monday announced a new ad campaign that highlights ExxonMobil's massive oil spill in Arkansas last month. The ads will be concentrated in the Washington, D.C., Metro's Foggy Bottom station, which is used by many State Department employees commuting to work, as the agency considers whether to approve the construction of the Keystone XL pipeline."

"Watchdog also says US billionaire's Scottish golf resort could not substantiate claim that tourism will be harmed by turbines."

"The campaign group formed to support Barack Obama's political agenda has launched an initiative to shame members of Congress who deny the science behind climate change."

The 2013 Pulitzer Prize for National Reporting went to InsideClimate News, a 5-year-old web-only nonprofit, for its book-length feature series on the 2010 Enbridge tar-sands oil spill that fouled miles of Michigan's Kalamazoo River. InsideClimate has been one of the most aggressive media outlets covering the current spill in Mayflower, Arkansas. ExxonMobil recently threatened one of InsideClimate's reporters with arrest for trying to find a federal government press office handling the spill.

"WASHINGTON -- The Obama administration’s nominee to lead the Environmental Protection Agency declined on Thursday to answer questions about a controversial new guide that suggests public health standards could be relaxed dramatically in the event of a nuclear attack or accident."

The livestock industry, which has been successfully urging state legislatures to pass bills hamstringing exposes of animal cruelty, has a new tactic that hobbles long-term undercover investigations of feedlots and slaughterhouses.

"Decades ago, when a U.S. EPA administrator was on the brink of retirement, employees wheeled a giant cardboard box into his office. Inside: an employee known for his tendency to disparage the agency's decisions in the press."

"On one covert video, farm workers illegally burn the ankles of Tennessee walking horses with chemicals. Another captures workers in Wyoming punching and kicking pigs and flinging piglets into the air. And at one of the country’s largest egg suppliers, a video shows hens caged alongside rotting bird corpses, while workers burn and snap off the beaks of young chicks."

"InsideClimate News reporter Lisa Song was threatened with arrest on Wednesday after she entered the command center for the cleanup operation in Mayflower, Ark., where a major oil pipeline spill occurred on Friday."

Rumors that the conservative billionaire Koch brothers could be poised to buy the Tribune Company raise questions about how that might affect Tribune news outlets' coverage of environment and energy issues, in which the Kochs have a substantial stake.

"Rumors of Scripps begone -- geophysicist Marcia McNutt, who stepped down as head of the U.S. Geological Survey (USGS) in February, is returning to Washington, D.C., as the new editor-in-chief of Science. McNutt will take over the editorship on 1 June from Bruce Alberts, who announced his retirement last year."

"Wide-ranging investigation, which will look into six different federal departments, is to review incidents in which the media was thwarted when trying to speak to Canadian government scientists about their work."

"Most city governments on the mainland withheld vital information on pollution from the public last year, with many scaling back their disclosure to protect polluters as economic growth slowed, two major environmental organisations said in a study released in Beijing yesterday."