IT WAS a dramatic declaration: glaciers across much of the Himalayas may be gone by 2035. When New Scientist heard this comment from a leading Indian glaciologist, we reported it. That was in 1999. The claim later appeared in the Intergovernmental Panel on Climate Change’s most recent report – and it turns out that our article is the primary published source.

The glaciologist has never submitted what he says was a speculative comment for peer review – and most of his peers strongly dispute it. So how could such speculation have become an IPCC “finding” which has, moreover, recently been defended …