You can take the train to work, but your office is still a mile away from the station. Might as well drive, right? How we can solve the last-mile problem.

"People have imagined that if we stopped emitting carbon dioxide that the climate would go back to normal in 100 years or 200 years. What we're showing here is that's not right. It's essentially an irreversible change that will last for more than a thousand years," Solomon says.

Even the insect's inedible silk, which makes up 50% of the weight of the dry cocoon, could provide nutrients: The material can be rendered edible through chemical processing and can be mixed with fruit juice, sugar, and food coloring to produce jam, the researchers reported.

Cities around the world are finding better ways for their citizens to get around.

Dr. Behar and his colleagues at the University of Colorado this past August released 90 yellow rubber ducks into the melt water flowing down a chasm in the largest of Greenland's 200 glaciers -- the Jakobshavn Isbrae -- which has been thinning rapidly since 1997. Each duck was imprinted with an email address and, in three languages, the offer of a reward. If all goes well, Dr. Behar hopes that one day they will emerge 30 miles or so away at the glacier's edge in the open water of Disko Bay near Ilulissat, bobbing brightly amid the icebergs north of the Arctic Circle, each one a significant clue to just how warming temperatures may speed the glacier's slide to the sea.

Mr. Sanns, 51 years old, is part of a small subculture of gearheads, amateur physicists and science-fiction fans who are trying to build fusion reactors in their basements, backyards and home laboratories.

"Cosmic AC," said Man, "How may entropy be reversed?"

The global public need only get wind of negligence and "human error" somewhere in the world and suddenly the governments advocating "green" nuclear energy will find themselves accused of gambling recklessly and against their better judgment with the secur

At the same time that the foundation is funding inoculations to protect health, The Times found, it has invested $423 million in [...] the companies responsible for most of the flares blanketing the delta with pollution, beyond anything permitted in the U