Quote:
Originally Posted by nomadking
So the science doesn't show that the climate has always changed, all by itself. Eg A large chunk of North America(including Manhattan Island) was well and truly buried under an ice sheet, a matter of thousands of years ago. How could that be, if Man and the Industrial Age were supposed to be responsible. That is Science, not politics.
|
Previous periods of climate change happened over geological ages, not human generations. The speed of change is what we're worried about, if the climate was changing naturally it would be imperceptible to civilisation because it would happen over thousands of years rather than decades.
There have been occasions when it moved much faster than that, similar to the speeds now, but that was the result of a dramatic change. One of them was the event that
killed off the dinosaurs. There was another event hundreds of millions of years
before as well with volcanic explosions across a younger, more volatile, earth being the leading theory as to the cause.
These were, geologically speaking, 'sudden' events caused by some incident that dramatically changed the climate. We're in another event now but there hasn't been a huge incident, there has just been us.