"Wheat prices rose Wednesday as the hot, dry summer continued to take its toll on crops in the U.S. and Russia."

"Scientists say that the latest observations suggest that Arctic sea ice cover is continuing to shrink and thin."

"Two prominent seismologists said on Tuesday that Japan is ignoring the safety lessons of last year's Fukushima crisis and warned against restarting two reactors next month."

"The news just keeps getting worse for bisphenol A. Lab and animal research has linked it to reproductive disorders, obesity, diabetes, and cancers sensitive to hormonal activity, like those of the breast and prostate. Studies show that more than the vast majority of Americans have measurable levels of BPA in their urine (though as Sydney Brownstone wrote on this blog yesterday, Old Order Mennonites seem to have less)—not surprising given that the chemical is used in thousands of consumer products, including cans and plastic packaging for food and beverages. Now a new study from China has found an association, for the first time, between human exposure to BPA and brain tumors."

"Lonesome George, the last remaining tortoise of his kind and a conservation icon, died on Sunday of unknown causes, the Galapagos National Park said. He was thought to be about 100 years old."

"Too contaminated to drink and never in continuous supply because of the hours-long daily power shortages, the water in Gaza is causing widespread, chronic health problems and contributing to high rates of child mortality."

"Global leaders ended a U.N. development summit on Friday with what was widely considered a lackluster agreement, leaving many attendees convinced that individuals and companies, rather than governments, must lead efforts to improve the environment."

"On the final day of the UN sustainable development summit in Rio, UN chief Ban Ki-moon has urged governments to eliminate hunger from the world."

"When Silent Spring was published in 1962, author Rachel Carson was subjected to vicious personal assaults that had nothing do with the science or the merits of pesticide use. Those attacks find a troubling parallel today in the campaigns against climate scientists who point to evidence of a rapidly warming world."

"With turbines threatening some bird and bat populations, researchers are seeking ways to keep the skies safe for wildlife."