"The president of Japan’s troubled power company, Tokyo Electric Power, resigned Friday, shouldering responsibility for the crisis at the Fukushima Daiichi nuclear plant as the utility booked one of the largest yearly losses in Japanese corporate history."

"The disputed share swap and oil exploration agreement between BP and the Russian state-owned company Rosneft has collapsed, leaving some BP investors questioning the company’s future strategy and freeing Rosneft to look for a new partner in Russia."

"A projected spate of extinctions of animals and plants this century may be less drastic than feared because the most widely used scientific method can exaggerate losses by more than 160 percent, a study said on Wednesday."

"The Food and Drug Administration is doing a poor job ensuring that imported seafood doesn't pose health risks to Americans, failing to properly assess foreign producers and inspect the products they ship to the U.S., according to a congressional research report released Monday."

"A solar energy plane made the world's first international flight powered by the sun on Friday to show the potential for pollution-free air travel."

"The Obama administration is pushing back against plans by its oil spill commission co-chairman to spread his message about offshore drilling reforms to Cuba, the panel leader said today."

Japanese authorities for years discounted and ignored warnings that precisely the kind of quake-tsunami disaster that happened at the Fukushima plant could happen at other nuclear plants.

"According to a recent study, noise pollution could be costing lives. A World Health Organization report finds Western Europeans lose years to death or disability from excessive sound."

"The eight Arctic nations pledged Thursday to create international protocols to prevent and clean up offshore oil spills in areas of the region that are becoming increasingly accessible to exploration because of a changing climate."

"In a development that is likely to delay efforts to bring the Fukushima Daiichi Nuclear Power Station under control, the plant’s operator said Thursday that one reactor, No. 1, had sustained much more damage than originally thought and was leaking water."