This BBC series is well worth watching:
BBC | Topics | Climate Change
Dr Iain Stewert presents a well informed and impartial overview of the debate.
Episode I
BBC - BBC Two Programmes - Earth: The Climate Wars, The Battle Begins
Episode II
BBC - BBC Two Programmes - Earth: The Climate Wars, Fightback
The planet is hotter than any time in history: undisputed fact.
CO2 is higher than at any time in history: undisputed fact.
The model of CO2 --> Global warming is now the subject of debate.
Frankly, i'd be terrified if i thought that every caution light in a helicopter was disputed the way CO2 has been on this thread.
You either play it safe or accept that in Russian Roulette you will eventually loose...