What Yosemite looks like in infrared:

[mattbell]

In case you were wondering, this is what Yosemite valley looks like in near-infrared.  Near-infrared is different from thermal infrared, which shows temperature.  In near-infrared, which is commonly used in see-in-the-dark security cameras, foliage is very light, while water is very dark and murky.  I brought a near-infrared camera along on my trip to Yosemite yesterday. 

 
 
 
   

Full set on flickr.

If you like these, I also have some near-infrared pictures of the japanese gardens in San Francisco.