While the evidence confirms that the 13th World Urban Forum (WUF13) took place in Baku and addressed climate change and urbanization, none of the provided search results specifically mention a warning on 'day three' regarding war and climate change affecting cities faster than governments can respond. The evidence confirms the event and the general themes, but not the specific quote or timing.

The evidence confirms that WUF13 in Baku addressed a 'global housing crisis' and 'housing divide,' but there is no mention in the provided sources of a specific call to 'shift away from standardised housing models.' The sources are too general to corroborate this specific policy recommendation.