Scientists seeing signs of global warming-related stress in western Hudson Bay polar bears ask whether the hungry bears are turning to cannibalism.

"A terrible economy curbed energy demand throughout the Unites States in 2009, slowing coal production in Wyoming for the first time in more than a decade."

"The plan for broad use of X-ray body scanners to detect bombs or weapons under airline passengers' clothes has rekindled a debate about the safety of delivering small doses of radiation to millions of people -- a process some experts say is certain to result in a few additional cancer deaths."

"LOS ANGELES -- Barred from using lead in children's jewelry because of its toxicity, some Chinese manufacturers have been substituting the more dangerous heavy metal cadmium in sparkling charm bracelets and shiny pendants being sold throughout the United States, an Associated Press investigation shows."

"CHARLESTON, W.Va. -- Bayer CropScience has not properly maintained or tested the underground storage tank where it keeps roughly 200,000 pounds of methyl isocyanate, the deadly chemical that killed thousands of people in Bhopal, India, in 1984, state inspectors have alleged."

"Senate climate legislation advocates are bracing for a floor battle this month over a Republican campaign that they fear could drag down efforts to pass a major global warming bill before the real legislative debate can start."

"The Obama administration is engaged in an unusual internal spat as the White House and Environmental Protection Agency tussle over how to handle millions of tons of waste from coal-fired power plants."

"The Middle East is facing its worst water crisis in decades. For three summers, the annual rains have failed to come. Farmland has dried up across the region in Iraq, Syria, southeast Turkey and Lebanon."

"A team of researchers has documented a variety of urogenital malformations in male babies born to women living in an area of South Africa where the potentially endocrine-disrupting pesticide DDT is still used. The team, reporting in a study published online 23 October 2009 in BJU International, believes the malformations may be connected to the mothers’ DDT exposure."

"A widely used type of asphalt sealant derived from coal tar may be making its way into the house dust of homes, according to new research. Young children may actually be playing on coal-tar-sealed driveways and playgrounds, potentially raising their exposure to harmful chemicals."