My winter usage of lighters is usually limited to the ski slopes.I can't recall a Bic ever letting me down, no matter what elevation.I've also switched from cotton balls/vasalene to Esbit fuel tabs.They burn for 10-15 min., easier to carry and will store for years.
Or this.http://www.waterstrider.com/bear-repellent-portable-electric-fence.htm
Scroll down to the middle of the page to check out the video.
P.S. I'm not affiliated with either one of these products,I've just been doing a little research myself.