Yosemite Trekker - A Photo Journal
The City Edition travels through Yosemite Valley and parts of the High Sierras to get up close and personal with the geology, wildlife and nature. Read the commentary and check out the photos. There's also a one-stop guide to park services that will help you plan your next trip, inquire about volunteer opportunities or get a job at America's pre-eminent National Park. 
There may be no time like the present to plan for rocky road that lies ahead. How will humans survive without electricity after a solar flare disables the power grid for years to come? Will an eruption of the Yellowstone supervolcano, more catastrophic weather, the economic meltdown and another terrorist attack combine to deliver a knockout punch to life as we know it? Here's a comprehensive guide to help you get ready for the worst case scenario in the event that all the dire predictions for 2012 are realized
NASA
What is the 2012 Doomsday Prediction?
Since the History Channel began its evocative series outlining the case for an apocalypse taking place in 2012 (or soon after), people have been scrambling to find out more about the environmental equation, as well as prophecies from the past and the suggestion that events like the Great Flood really did happen in the not so remote past. Here's a detailed explanation of the who, what, when, where and how of the 2012 doomsday theory - complete with citations and links to other resources.
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HEALTH
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Restoring Your Vision Without Glasses or Surgery
Back in the 1920's, Dr. William Bates developed an approach to for correcting eyesight that never caught on with his peers. Yet by following a series of simple techniques, you can beat serious eye disorders, get back your 20/20 vision and leave the spectacles behind. Here's a look at how it's done.
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