Are we sure there actually IS a Greenhouse effect? Not every scientist agrees - though they never get any coverage!
Remember, Planet Earth went through massive Climate Changes long before we evolved. The Polar Ice caps are 'only' 30 million years old(!) - before then, they never existed throughtout the 4.5 billion years of Earth's existence.
Maybe Earth is just getting back to it's normal 'warmer and wetter' self?
See you all at the Bash!!