"Regulators traditionally react to falling fish stocks by putting additional curbs on fishing - an approach that may not work as larger changes such as global warming alter the seas and their inhabitants."

"Scientists are reporting early signs that the Gulf of Mexico oil spill is altering the marine food web by killing or tainting some creatures and spurring the growth of others more suited to a fouled environment."

"President Obama and Senate Democrats have decided to press ahead in the next two weeks with a scaled-back energy bill that limits carbon pollution by power plants but not by other industries in an effort to salvage the legislation before midterm elections."

"The NASA Goddard Institute for Space Studies now reports that the first six months of 2010 are the warmest on record, both in terms of atmospheric data and in combined atmospheric/ocean readings."

"BP engineers working to choke the flow of oil into the Gulf of Mexico found a leak on a line attached to the side of the new well cap and were trying to fix it Thursday before attempting to stop the crude."

"There's 'no chance' that President Obama will rework the executive policies carried over from his predecessor that tell agencies how to write regulations and outline a White House oversight role, academics and activists say."