"The La Nina weather anomaly blamed for one of the worst droughts in the southern United States could revive this autumn, the U.S. Climate Prediction Center forecast on Thursday."

"The lives of half a million children in the Horn of Africa are at risk, international aid agencies said on Friday, as the worst drought in decades forces thousands of people to flee their homes each day."

"A Japanese nuclear power plant has come under fire for trying to sway the outcome of a public forum on atomic safety, dealing a fresh blow to the industry's credibility four months after the world's biggest nuclear disaster since Chernobyl."

The DuPont company, which has touted its own safety and environmental record, turned down in 1988 a construction option for its Belle, WV, plant that could have protected workers and the community from deadly phosgene gas. One worker died in a series of three phosgene releases there in 2010.

"DuPont Co. rejected affordable plant and equipment upgrades, ignored near-miss incidents and violated the chemical giant's own widely touted safety guidelines in failing to prevent three January 2010 accidents that left one Belle plant worker dead, federal investigators said in a report issued Thursday."

"Even though the [Yellowstone River] oil spill is widespread, it's not always easy to get to. In Laurel, Montana, near where the spill happened, Exxon security guards block off a public road leading to cleanup operations. Media from around the world wait to be escorted into one area to film the spill. Hassett said the escort is to protect reporters from the floodwaters."

"The worst drought in 60 years is causing a severe food crisis in East Africa. In Kenya, the world's largest refugee camp is overwhelmed as 10,000 climate refugees from across the drought-stricken region arrive each week seeking water, food and shelter."

"Credibility is a precious thing. Oil giant ExxonMobil did not have much to begin with, but it went even deeper into its scarce reserves in the past few days when a company pipeline spilled oil into a river that runs past the homes of about 6,500 people. Wednesday brought another blow: it turns out ExxonMobil needed almost an hour to fully seal the burst pipeline instead of the 30 minutes company president Gary Pruessing had initially said it took."

FEMA trailers rejected after Hurricance Katrina because of formaldehyde concerns are being welcomed by Indian tribes in Oklahoma who have little else to live in.

"A massive dust storm has swept into the Phoenix area and drastically reduced visibility across much of the valley."