How to Think About 1.5 Degrees
- Written by Clive Hamilton, Professor of Public Ethics, Centre For Applied Philosophy & Public Ethics (CAPPE), Charles Sturt University

Astonishment was universal last December when the Paris Agreement on climate change included the aspiration to limit warming to 1.5 degrees above pre-industrial levels, a much tougher target than the standard of 2 degrees, now seen as too risky.
It was a remarkable triumph for a long campaign by the small island states,...