National (U.S.)

"In the depths of the ocean and on shore, science is only beginning to measure the long-term impact of the worst oil spill in U.S. history."

"The Interior Department's inspector general appears likely to join the growing scrutiny over whether the National Park Service falsified data in an environmental review of a California oyster farm."

"CANTON, Ohio — The Ohio steel industry, led by a drilling boom in the gas and oil industry and a resuscitated demand for cars and light trucks, is growing again. Steel makers across the state are racing to keep pace with plans to add a total of two million square feet of production space at a cost of $1.5 billion."

"The early spring of 2012 raised both temperatures and eyebrows, including President Obama's.

"If the mad cow found in California has you wondering about food safety, well, there are plenty of problems that pose serious risks to the food supply. But mad cow disease shouldn't be high on the worry list."

A star-studded cast of experts spent two days discussing "Science Writing in the Age of Denial" at the University of Wisconsin April 23-24. Most who attended praised it. Unable to argue the science, science deniers advanced their arguments by trying to silence the conference Twitterfeed with a denial-of-service attack, according to the Knight Science Journalism Tracker.

"Where have all the bees gone? The question has vexed farmers, beekeepers, regulators and scientists since the fall of 2006, when U.S. bee populations began their mysterious decline."

"A new biotech corn developed by Dow AgroSciences could answer the prayers of U.S. farmers plagued by a fierce epidemic of super-weeds. Or it could trigger a flood of dangerous chemicals that may make weeds even more resistant and damage other important U.S. crops. Or, it could do both."

"Barack Obama has launched a new green re-election site hoping to make up with environmental voters ahead of next November's vote."

"Shrimp processors have asked a federal judge to delay preliminary approval of BP Plc's proposed settlement of economic damage claims from the 2010 Gulf of Mexico oil spill, arguing that it is unfair to parts of the shrimp industry."

"The American Shrimp Processors Association said the accord, which calls for BP to pay $2.3 billion in seafood claims, favors shrimp harvesters and boat captains at the expense of shrimp docks, processors and others it represents.