"Engineering experts probing the Gulf of Mexico oil spill exposed holes in BP's internal investigation as the company was questioned Sunday for the first time in public about its findings."

For years, mine safety experts urged the Mine Safety and Health Administration to require coal-dust monitors in mines. Mining companies and MSHA resisted. Now Massey Energy Co. is using the lack of such monitors as an argument to deny charges that it did not do enough to control the buildup of explosive coal dust at its Upper Big Branch Mine, where 29 workers died in a massive blast on April 5.

A 2008 natural gas explosion that killed a man in Sacramento "was one example of what many experts and studies say is weak oversight of gas pipelines in the United States, a problem that has contributed to hundreds of pipeline episodes that have killed 60 people and injured 230 others in the last five years. Those figures do not include the final toll of the explosion of another Pacific Gas and Electric pipeline this month in San Bruno, Calif., that left seven people dead and more than 50 injured."

"The world could be on the brink of a major new food  crisis caused by environmental disasters and rampant market speculators, the UN will be warned today at an emergency meeting on food price inflation."

"Six Massey Energy management personnel -- including the company's corporate safety director -- have filed suit challenging subpoenas that would force them to answer questions about the April 5 explosion that killed 29 workers at Massey's Upper Big Branch Mine."

"Louisiana Democrat Mary Landrieu today vowed to block the Senate's confirmation of a top White House nominee until the Obama administration takes action on its deepwater drilling moratorium."

"The oil giant nears an agreement to dispense $500 million through an alliance overseen by gulf state governors. Critics fear expertise elsewhere will be overlooked."

Despite some bad wildfires, the 2010 fire season overall has been less severe than many recent years.

"The Obama administration's bid to strengthen federal pipeline oversight is raising questions from environmental groups as well as industry, suggesting that safety reforms could fail to reach a legislative fast track despite three recent high-profile ruptures along the 2.3 million miles of U.S. oil and gas lines."