While there is much room for debate, challenging the complex science or its conclusions from any one dimension is unacceptable, whether by focusing on one variable, a limited time window, or via anecdotes, or limited personal observation. I, for one, accept the peer-reviewed science but would not be surprised if forecasts shift a great deal in the years ahead. In view of all of the above, policy makers need to be careful.
Ziggy Switkowski is chancellor of RMIT University.
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