I count myself as a liberal, and I don't believe in climate change.
I agree, sometimes the weather just changes. The climate has alternated between blistering heat and freezing cold for millions of years; the period we live in is actually quite rare in that we have relatively stable temperatures.
There are often several things people neglect to take account of when talking about climate change:
-Firstly, it takes thousands of years. Not hundreds and certainly not decades or from year to year (so going, omg we've had the coldest/warmest winter in ages is meaningless).
-Temperature records go back for only a couple of hundred years. That's nowhere near enough to pick up any pattern of change.
-We've always had funny weather. Trying to look at patterns from year to year is just pointless.
-CO2 levels have been shown to rise AFTER climate change, as a result of it, not as a cause of it. It could well still be rising after the last climate change about 10,000 years ago.
I don't think we're experiencing any more than blips in weather patterns in my opinion, and there's no point trying to read anything else into it. I don't think that means we should just go ahead and pollute the planet as much as we like either, but I also don't think anyone needs to worry too much.