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I'm not sure what's the bigger threat, global warming or deforestation. In some ways the two are linked.
In terms of warming, though, I have witnessed change in the last 20 years or so. Whather that change is part of a natural cycle or GW I'm not sure. Being in a sub-alpine area, Oberon (IMO) seems to be well placed to judge any warming effects.
When I moved here 20 years ago, we would get 5 to 10 significant snow falls a year. We haven't a had a significant one in the last 5 that I can remember. We used to have snow by or on Easter, but not the last few years. Last years we had snow lay for only one day. This year it hasn't laid at all, and we've only had a 2 days that I've seen snow fall in town. And it hasn't been that dry.
Talking to the locals, yes they used to get bigger snow falls years ago than I've experienced here... but is it GW or a natural variation? I don't know.
GW is a process we know about. It is plausible and real. All that's really debatable is the degree of the effect. If its already significant, then we are a bit late doing something about it, but better late than never. If it is not yet significant, nows the time to do something about it.
Al.
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