The scientific consensus is that the end of continuous ice in the summer months is within the human horizon — 50 years, 70 years, 30 years. In recorded history, we've never had that, so this is a new era. It will have enormous consequences.  -   Ian Macdonald     Quotes
The scientific consensus is that the end of continuous ice in the summer months is within the human horizon — 50 years, 70 years, 30 years. In recorded history, we've never had that, so this is a new era. It will have enormous consequences. Ian Macdonald
 Consensus