A recent writer correctly pointed out that 31,487 American scientists (9,029 with doctoral degrees) have signed a petition agreeing that there is no convincing evidence that man is contributing to climate change.
Back in the '70s, the battle cry of the environmentalists was "global cooling." When things warmed up a bit, it was changed to "global warming." Now that there has been no significant increase in average global temperatures for the last 15 years, it has become "climate change."
And the beat goes on. Why can't we just accept the fact that global temperatures have generally been increasing for the past 10,000 years with the consequential retreat of glaciers and rising sea levels? If it were not for global warming we would still be in the Ice Age.
I was asked recently what period of time would be a reasonable measure of time to gauge climate trends. I am sure scientists would be all over the spectrum on this one, but in geological terms, I would think 1 million years would be a reasonable time period to establish trends. In practical terms, 10,000 years would be more reasonable. Neither represents a nanosecond in the billions of years the planet has existed.
Ask me if I stay awake at night worrying about the climate.