Understanding Climate Risk

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Archive for September 30th, 2014

‘Wait and see’ on climate? No, the science is clear: act now

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‘Wait and see’ on climate? No, the science is clear: act now

By Roger Jones, Victoria University and Roger Bodman, Victoria University

When should we act to reduce our greenhouse gas emissions and tackle climate change: now, or later when we know more?

One person who thinks we should wait is New York University theoretical physicist, and former US Under Secretary of Energy for Science, Steven Koonin.

In an article published by the Wall Street Journal, and reproduced in The Australian, Koonin claims that climate models are still too uncertain and that everyone should hold their horses, arguing that:

… because the natural climate changes over decades, it will take many years to get the data needed to confidently isolate and quantify the effects of human influences.

That’s not to say that the issue isn’t pressing. But Koonin says we should urgently do science, rather than urgently cut emissions:

The science is urgent, since we could be caught flat-footed if our understanding does not improve more rapidly than the climate itself changes.

Well, yes. But we’ve been doing this “urgent science” for decades. Read the rest of this entry »

Written by Roger Jones

September 30, 2014 at 8:09 am