So the IPCC is even more full of crap than thought

(wouldn't have thought it possible, myself) and so is the UN head(very possible):
...A report in Sunday’s London Times highlights new humiliations for the IPCC.

The most important is a claim that global warming could cut rain-fed north African crop production by up to 50% by 2020, a remarkably short time for such a dramatic change. The claim has been quoted in speeches by Rajendra Pachauri, the IPCC chairman, and by Ban Ki-moon, the UN secretary-general.

There is however one teensy-weensy little problem. As Professor Chris Field, the lead author of the IPCC’s climate impact team has now told reporters that he can find “no evidence” to support the claim in the IPCC’s 2007 report.
Now, that's pretty bad; their own people can find 'no evidence'?
(yeah, you know what's coming)
But wait! There's more!!
When the glacier story broke, IPCC apologists returned over and over again to a saving grace. The bogus glacier report appeared in the body of the IPCC document, but not in the much more carefully vetted Synthesis Report, in which the IPCC’s senior leadership made its specific recommendations to world leaders. So it didn’t matter that much, the apologists told us, and we can still trust the rigorously checked and reviewed Synthesis Report.

But that’s where the African rain crisis prediction is found — in the supposedly sacrosanct Synthesis Report.

So: the Synthesis Report contains a major scare prediction — 50% shortfall in North African food production just ten years from now — and there is no serious, peer-reviewed evidence that the prediction is true.
And MORE!!!
A prediction about the impact of sea level increases on people living in the Nile Delta was taken from an unpublished student dissertation.

We're at the point that it would be easier to ask for a list of things they haven't flat lied about or used bullcrap 'data' to 'prove'.