Sprintcyclist wrote on Sep 4
th, 2008 at 9:57pm:
According to "scientists", the globe has warmed up and cooled downm many times in the past, with associated GHGs.
WELL before oil, cars, pollution, industry, bicycles, ovens, ships, planes, wars or even people !!!!
And the GHGs humans produce are insignificant in the entire picture.
Well maybe you're right. People are insignificant. The planet was there before they existed and will still be there after they have gone.
If you don't think that 6.8 billion people are important then it's not an issue.
Of course the two main difference between the dark distant past and now are 1. The 6.8 billion people now and 2. The vast forest and abundant ocean life that existed before the 6.8 billion people were here.
The past is not always a guide to the future, especially if you change the planet 'just a tiny bit'.