TOP 100 CAMPING SITES
| |||
|
| |||
| |||
|
| |||
| WHO raises pandemic alert level from 4 to 5 as swine flu spreads Concerned over the rapidly spreading swine flu, the World Health Organization (WHO) has upped the influenza pandemic alert to phase 5, just one step short of declaring a bona fide global pandemic. [More] rss.sciam.com |
Earth's Fried Far-Future Postponed [The following is an exact transcript of this podcast.]About a billion years from now, some scientists say, the sun will be too bright for comfort, and our formerly hospitable planet will no longer be able to support life. If visions of this impending heat death disturb you, researchers from the California Institute of Technology have some good news. Their calculations add at least another billion years to Earth’s expiration date, results published in the Proceedings of the National Academy of Sciences. [More] Presented By:You Need the Speed of Norton 2009Introducing the revolutionary Norton Internet Security 2009. With a one-click, one-minute install, under 7MB of memory usage and fewer, shorter scans, it?s the fastest security suite anywhere. Get your FREE trial today!Click to Learn More www.norton.com/speed Ads by Pheedo rss.sciam.com |
Cut Back on Tamiflu, U.S. Official Says The director of the National Center on Immunization and Respiratory Diseases said that summer camps should cease handing out Tamiflu to healthy campers. nytimes.com |
Airlines & Recycling: The Not-So-Green Skies Even the infrequent flier might have noticed that when the flight attendant comes around collecting passenger detritus, all the empty cans, cups, bottles, newspapers and napkins usually end up in the same garbage bag. The U.S. airline industry discards enough aluminum cans every year to build nearly 58 Boeing 747s and enough paper to fill a football field–size hole 230 feet deep--that’s 4,250 tons of aluminum and 72,250 tons of paper. The 30 largest airports in the country, with the help of the airlines, create enough waste to equal the trash produced by cities the size of Miami or Minneapolis.Unlike other aspects of the travel business, the airline industry has moved at a snail’s pace to get onboard the green revolution. Although hotels, for instance, have plenty of monetary reasons to encourage patrons not to have their towels changed every day, the airline industry has little economic incentive and even less government pressure to go green. [More] rss.sciam.com |
Readers Respond on "Grassoline" Feed the World As a retired farmer, I know that the information in “Grassoline at the Pump,” by George W. Huber and Bruce E. Dale, about agricultural residues is false in a most dangerous way. There is NO extra residue from the corn harvest. Sure, you can take it away and use it to create fuel. But that residue is desperately needed right where it fell, to renew the soil. All of it and more are needed to sustain our already low organic matter levels created by years of plowing and other unsustainable agricultural practices. Soil can and does “die,” and then it is unable to produce food. Energy creation is important, but so is our ability to feed the world. [More] rss.sciam.com |