The problem is that this has been tried for more than 20 years. There are only so many times that one can yell 'fire' in a crowded theater before most of the audience stops listening. We're past that point.
There are problems on both sides of the AGW argument, but the catastrophic predictions that have failed to materialize has done significant damage to the AGW argument.
However, the thing I find MOST DISTURBING in all of this are the data adjustments in the GISS and HadCRUT databases. Dr James Hansen, while director of GISS, had the GISS historic temperature database adjusted for 'anomalies'. The old dataset was not retained and the adjustments were not recorded so it is now impossible to retrieve an uncorrupted temperature database. The practice continues today. The UK Met office did the same with the HadCRUT historical database and did not save the unadjusted data or the adjustments. This is like the director of the Library of Congress going through each rare book in the library with bottles of whiteout and 'correcting' every perceived misspelling and improper sentence construction. Or the director of the Louvre 'smoothing' Mona Lisa's appearance so that it's more appealing to the public.
That's not science, it's outright destruction of historical records.
As a result, I have more confidence in Chinese government economic reports than I do of IPCC and government climate reports. But sure, keep trying to scare the public with silly catastrophic predictions that have a very low probability of coming true.