Guardian: The world has a choice when dealing with climate change. One is to decide it's a problem like any other, which can be dealt with slowly and over time. The other is to recognise it as a crisis, perhaps the unique crisis in human history, which will take rapid, urgent action to overcome.
Science is in the second, scared camp that's the meaning of the IPCC report issued last month, which showed that our planet is already undergoing climatic shifts far greater than any experienced in human civilisation,...