Only about four per cent of greenhouse gases are the result of human endeavors, the rest being provided from natural causes.like volcanoes, forest fires, termite flatulance , yes, humans and cattle add their share. The worst and most catostrophic prediction is a ten degree increase in temperature over the next century. Four percent of that increase attributable to man made pollutants would be .4 degrees hardly enough to raise the sea level noticably within that 10 degree temperature change. It seems to me the hieght of hubris to think that the Kyoto treaty can do much to affect what is an event , climate change , that has been occuring since earthly time began. It is politically correct to moan over the event so we will do something ; ineffectual as it will be .