"Alexandria's controversial coal-burning power plant, once considered one of the largest single sources of air pollution in the Washington area, will probably close by October 2012, its owner and the city announced Tuesday.

The surprise announcement culminates a 12-year battle to close the six-decade-old Potomac River plant, which local activists and environmentalists blame for causing or contributing to dozens of cases of serious illness each year.

"Although sleazy 'scratcher shops' with unskilled artists and dubious safety records are becoming a thing of the past, scientists are growing concerned about what's going into tattooed skin, not just how it got there."

"Federal panel's report blames PG&E for last year's deadly gas pipeline explosion in San Bruno, but other agencies come in for criticism too."

"President Barack Obama says his administration is considering seven new government regulations that would cost the economy more than $1 billion each a year, a tally Republicans will pounce on to argue that Congress needs the power to approve costly government rules.

"MOSCOW — Exxon Mobil won a coveted prize in the global petroleum industry Tuesday with an agreement to explore for oil in a Russian portion of the Arctic Ocean that is being opened for drilling even as Alaskan waters remain mostly off limits.

The agreement seemed to supersede a similar but failed deal that Russia's state oil company, Rosneft, reached with the British oil giant BP this year — with a few striking differences.

"U.S. farm income will soar past $100 billion for the first time in 2011 following rising cash receipts for everything from corn, wheat and cotton to soybeans, the Agriculture Department said on Tuesday. U.S. farm income is forecast at $103.6 billion for 2011, up $24.5 billion, or 31 percent from 2010. Much of the increase is the result of higher crop values, which are expected to rise by $33.6 billion.

"For centuries, water has been a potent weapon between warring states. When Pisa was at war with Florence, Leonardo da Vinci and Machiavelli planned to divert the Arno and leave Pisa dry."

"The U.S. East Coast is mopping up after Hurricane Irene's weekend battering that killed around 40 people and authorities and residents are looking out anxiously over the Atlantic and asking: Is another one coming?

Tropical Storm Katia is jogging west at a brisk 18 miles per hour (30 km per hour) and the U.S. National Hurricane Center says it is expected to become a hurricane by late Wednesday or early Thursday.

"An independent investigation panel has confirmed that [Japan's] Nuclear and Industrial Safety Agency asked utilities in at least three cases to mobilize their employees for government-sponsored symposiums on nuclear power and express supportive or neutral opinions."