The Food and Drug Administration tested electronic cigarettes -- whose makers (most Chinese) tout them as safer than ordinary cigarettes. The FDA found that some e-cigarettes contained cancer-causing chemicals.

"World climate negotiators will gather in Bonn next month to edit an 'indigestible' set of proposals into a manageable document for international consideration, the head of a key U.N. panel said on Tuesday."

Seeking collaboration on climate change in her visit to India, Secretary of State Hillary Rodham Clinton was met instead with simmering grievances.

The UN-based International Maritime Organisation (IMO), which regulates ocean shipping, agreed Friday to voluntary proposals aimed at cutting carbon emissions.

Secretary of State Hillary Clinton's visit to India will bring a $10-billion deal to sell U.S. nuclear reactors to that country -- but probably not break the impasse on whether India will join other nations trying to limit greenhouse emissions.

"A type of fuel once used in Japanese aircraft during World War II is slowly making its way again toward the market, and its backers say that it will work better in automobiles than ethanol."

"The British Bee Keepers' Association ... is receiving money from one of the main manufacturers of [an] allegedly bee-killing brew, Bayer Crop Sciences, and endorsing some of its products as 'bee-friendly'."

"In addition to weakening Earth’s natural shield against excessive radiation levels, ozone depletion above Antarctica has significantly dampened the Southern Ocean’s ability to absorb atmospheric CO2 and has accelerated acidification of southern polar waters, new research shows."

"During the past few centuries the near-equatorial band of dense precipitation that supplies freshwater to nearly one billion people has migrated hundreds of miles to the north —most likely because of a warming world, scientists say."