I dont think were yet evolved to the point where were clever enough to handle a complex a situation as climate change. The inertia of humans is so huge that you cant really do anything meaningful. – James Lovelock
One thing that being a scientist has taught me is that you can never be certain about anything. You never know the truth. You can only approach it and hope to get a bit nearer to it each time. You iterate towards the truth. You dont know it. – James Lovelock