[shunyadragon]

The earth has been in a general global warming trend since the last glacial period. According to the long term trend we should be approaching the peak of the global warming trend within the next several thousand years. The long term records show cyclic periods global cooling and warming within this trend. The previous global cooling periods fit this cycle. Naturally, without human influences we would be in a warming trend since the 70s. The question is how much of the historic warming trend since the industrial revolution is due to human causes.

As a geologist I believe humans have caused an excelerated global warming trend and there is virtually nothing we can do about, but learn to adapt to the change. All the recommendations that people propose could not put a dent in the future increase in global warming due to future population growth and the industrialization of the third world.