is it HOT ENOUGH yet?, page-89

theres a lot in this presentation Wal. good work mate.

yep natural cycles were normal for thousands of years during which time there was feast and famine. hotter and colder. this is what provides the base line as its been cycling semi-regularly which has been confirmed by ice cores and geology studies. volcanoes are a natural part of those cycles. and some periods of intense rising has been triggered by increased volcanic activity, as you know,.

now I come to the gas analysis. much that has been done has shown that we're already 1.18 degree rise above the 20C average. I think your source addresses only Co2 increase. add methane and other GHGs, Co2+CH4 account for around 90% of GW, and the rise to 1.18 makes more sense.

Co2 is now at 428ppm getting close to double the average pre-industrial level. if we were to stop all GHG emissions today the accumulated effect would result in temperature increases for at least 20 years. yet still we are emitting more than we ever have every year.

we've already seen negative effects. yes some benefits, but as warming increases the intensity of the weather system will increase. too far and weather will flatten corn, flood deserts and make a desert of a rainforest.