We had this question just the other day in one thread. Check out http://"http://www.cbc.ca/technology...earspray.html"
After researching aggressive bear behaviour incidents in Alaska, the statistics pan out the following way: bear spray stopped aggressive behaivour, including attacks, in 92% of the cases. Guns only in 67%.
Pack your spray, folks, the bears will be up and around soon - or in some regions, they are already.

