I'm in danger of sending this excellent forum off topic but here goes anyway. I presume there is irrefutable evidence that temperatures are rising, though I understand it is by no means true every year. What makes me think that if there was irrefutable evidence of temperatures falling we would also be hearing warnings of Armageddon. To me the speculation about outcomes in 50 years time is just that, speculation, not irrefutable evidence. It is reasonable of course to expect there will be some change to the human condition wrought by climate change but it seems to me that a conviction that this change will be calamitous has an almost religious belief that the good Lord created the perfect climate for his creatures.