Note that the goal of the meeting isn't to find out what is really happening with global warming, but to "restore public confidence in science of global warming", i.e. re-brand, repackage, and re-sell the same snake oil all over again.
And note that the UN and IPCC are trying to put all the focus on the one bogus claim about the Himalayan Glaciers.
But of course, the loss of trust in the global warming cult is not based only on the lie about the glaciers. The AGW cult has been destroyed by numerous and repeated lies, exaggerations and frauds.
In addition to the glaciers, there was the CRU computer code, which showed that the entire "hockey stick" was a fabrication.
There were the Climategate emails which showed a coordinated and deliberate campaign of suppression of any opposing viewpoints.
There was the British Court ruling that found numerous points in Al Gore's "documentary" to be outright lies, such as claiming that increasing CO2 led to increase in temperature which the ice core data shows exactly the opposite; that first the temperature goes up, and then CO2 increases!
There is the video of the former head of Greenpeace admitting that the claims about Greenland losing its ice cover in 20 years were totally made up fantasies to scare people into signing donations checks!
There were the temperature sensors in colder high latitudes being shut down.
There was the temperature sensors found sitting in air conditioning outflows and in one document case next to a trash incinerator.
There was the new paint applied to the boxes holding the temperature sensors that increased the internal temperature by a whole degree!
The list goes on and on and the gaffe over the Himalayan Glaciers is just a tiny part of the whole scandal, but apparently the one the UN and IPCC feel they can refute while ignoring the rest, in order to "restore public confidence in science of global warming", i.e. re-brand, repackage, and re-sell the same snake oil all over again.
They must really think you are stupid!