Zozobra is right: this is not new. In fact, bacterial ice nucleation was first discovered in 1989 (RTFA, people).

S. E. Lindow, E. Lahue, A. G. Govindarajan, N. J. Panopoulos, D. Gies, Mol. Plant-Microbe Interact. 2, 262 (1989).

This is so NOT new that all snowmaking at resorts uses the recombinant ice nucleating protein produced by Pseudomonas syringae. Google "Snomax."

What is new is that MOST of the ice nucleating particles in the atmosphere were shown to be of biological origin, not from abiotic particles (ie., dust) as previously thought.

this reminded me of an example of game-geek mouth-eyes, complete with an eye-mouth!
http://www.blackborder.com/P20518/Magic-The-Gathering-9th-Edition-Plagiarize.html