Chocks - there is indeed a long term climate effect and it's not positive for Australia (but quite good if you live in say Murmansk). In geological time its only yesterday that glaciers almost reached Central London for example.
What is also a fact is that the rate of change has increased dramatically since 1700 - and tracks the onset of the Industrial Revolution and the growth of people and industry.
The greens think we can stop CC - I don't think so - but we may be able to SLOW the rate of change