"Istanbul is one of a host of quake-threatened cities in the developing world where populations have swelled far faster than the capacity to house them safely, setting them up for disaster of a scope that could, in some cases, surpass the devastation in Haiti from last month’s earthquake."

Cholera may be the next disaster in Haiti as thousands in tent cities face the coming rainy season without sanitation.

"Twenty-two electric utility facilities with coal ash impoundments have written action plans to make them safer. But on Thursday, as the U.S. EPA made these plans public, the agency also released engineering assessments of 40 more coal ash impoundments showing they have the 'high' or 'significant' potential to cause loss of human life, environmental damage, or damage to infrastructure."

"Long-term efforts to help Haiti recover from the earthquake will have to reverse environmental damage such as near-total deforestation that threatens food and water supplies for the Caribbean nation, experts say."

"The poor nation has long suffered from a lack of medical care and rampant disease. With the earthquake, aid agencies must build a healthcare system on the fly."

"Doctors and aid workers worry that a wave of infectious disease may soon spread through Haiti, with masses of the newly homeless clustering in public spaces without clean water or sanitation."

"Hundreds of thousands of Haitians are awaiting the start of a global rescue effort in the wake of the country's devastating earthquake."

"The Obama administration has decided not to support a global monitoring system for biological weapons, a move that affirms an earlier determination by the Bush administration but that will disappoint some nonproliferation experts."

"A new top inspector took charge Tuesday of the International Atomic Energy Agency as it faces one of the most turbulent periods in its 52-year history." Also: "The newly elected chemical weapons chief says he will pursue the last seven holdouts — including Israel, Egypt and Syria — to get them to sign a disarmament treaty and submit weapons stockpiles for inspection."

"Twenty-five years ago Thursday, a leak of the chemical methyl isocyanate -- MIC -- killed thousands of people who lived near a Union Carbide plant in Bhopal, India. It was the worst industrial disaster in history. Since then, residents of the Kanawha Valley have lived with and periodically complained about the huge stockpile of MIC at a sister facility, the former Carbide plant in Institute."

"Twenty-five years on, the world's worst industrial accident continues to kill and blight many lives. And still there's been no trial."

As the 25th anniversary of the chemical leak in Bhopal, India, approaches, the effects are still painfully present. Thousands were killed immediately; tens or hundreds of thousands were injured in the longer term. It could happen in the U.S.

"In a groundbreaking decision, a federal judge ruled late Wednesday that the Army Corps of Engineers' mismanagement of maintenance at the Mississippi River-Gulf Outlet  was directly responsible for flood damage in St. Bernard Parish and the Lower 9th Ward after Hurricane Katrina."

"The fuel company whose tank farm in Bayamón, Puerto Rico, exploded last month collected environmental violations and skipped inspections for years."

"A weakened Tropical Storm Ida drenched the U.S. Gulf Coast and oil installations on Monday, shutting down nearly 30 percent of Gulf energy production."