roger wrote:I think it's real. I think it's a problem. I don't think there is a thing we can, or should be doing about, given the limited knowledge we have at the moment.
I tend to agree with this assessment.
We have already taken actions (industrial revolution and population growth) which will affect the planet in one way or another for the next several hundred years, if not thousand years no matter what we do next. But we don't know enough about climate models to predict actual results, nor do we really know how to change things with any certainty of making them better.
People like stability, but this planet isn't stable, it never has been. Atmospheric conditions fluctuate widely over thousands of years, and the basic biology of the planet moderates the fluctuations. But things fluctuate just the same. Seas become mountain ranges and deserts become oases and back again. Loss of rainfall in Kansas may impair crop growth in the US, but may result in rainfall somewhere else. The Sahara desert was once fertile.
I do think we should use some common sense in our exploitation of natural resources and strive for a minimally invasive symbiosis with the planet, but I don't think we should go back to living in caves or anything in an attempt to ward off thermal changes in the global atmosphere.