How to achieve this cold(?) effect?

[panchoskywalker]

This is not my picture, it's just one I saw on flickr:

http://flic.kr/p/8fjphw

It looks like there's soe kind of cold effect....right?

[pellepiano]

If you mean the colors, they have the white balance of daylight ( less yellow, more of blue )

[dataflow]

try using levels.
brighten the blue channel, darken the red channel

[panchoskywalker]

Wow that's magic! Thank you!