climate change and snowy mountain peaks

I like mountains, you might have noticed. However to get to real mountains I usually need to fly, this is not very good for the environment and is heavily implicated in global warming, there is a good comment section on climate change, on the guardian website.
The Alps are falling to bits around Mont Blanc and on the Matterhorn, everything is falling. Most of the classic snow and rock routes are unclimbable. See this thread on the uk climbing alpine forum, it has been written by someone who is in Chamonix at the minute.
So am I destroying the environment by flying too much. I like cheap airfares as much as the next person, but will these quick weekends in France destroy some of what I travel for? Can flying be made more accountable in terms of the pollution it creates or will it always be a protected industry because of the benfits of tourism to the country. No country is going to impose high taxes on aviation fuel first, as they will loose out immediately. Though flying is not the main contributor at less than 5 percent, it is the fastest growing one. Recent reports have also said that even cutting green house gas emissions to the levels specified in the Kyoto treaty might not make any real impact, not that the USA or Australia even agreed to those minimal reductions.
I try to save electricity when ever I can, I recycle and use public transport, but it all seems small beer in comparision. Global warming as a weapon of mass destruction, perhaps this does not over state the case.