stokes stokes:
So what there saying is that the earth is getting warmer like it has in the past and even if we stopped the emissionof all green house gases there is no way we could stop this from happening, because they have a past history to go by!
Except that is faulty logic. The fact that we were warmer in the past does not mean that humanity isn't unnaturally causing this warming or that we are exacerbating the cycle. In addition, what about the affects on the earth of a warmer temp? Obviously the earth survived but how many areas now heavily populated by humans were rendered unihabitable by our standards. Sure the earth rebounded but are we willing to accept conditions that obliterate select coastal regions twice a year and flood island chains we vacation on?
Once the earth was a ball of volcanic rock. Would we shrug our shoulders and say its only natural if what we were doing was causing the earth to shift towards that again?
Using the "its natural" explantion simply ignores the fact that humanity is having an effect above and beyond the normal natural cycle as we have at every opportunity.
Take fish stocks. They naturally existed at large numbers for all recorded history yet humanity comes along and lo and behold we nearly fish them to extinction.
How did that happen? Hundreads of years ago they were in abundance. Why are they suddenly dissapearing? Whats the connection?
The earth might not be destroyed but it might not be able to adapt in a way we like and it might just cause devestation we find unacceptable and the cost to avoid this might just be the environmental equivalent of game stock conservation and for the same reasons.