This is about Koppen and simulated shifting due to climate change: * https://en.wikipedia.org/wiki/Köppen_climate_classification https://en.wikipedia.org/wiki/

This is about Koppen and simulated shifting due to climate change: * https://en.wikipedia.org/wiki/Köppen_climate_classification https://en.wikipedia.org/wiki/Köppen_climate_classification In the US, for construction, the IECC's system is used, and there was a recent update to a few dozen counties: > However, with new research based on measured temperature data from over 4000 weather stations throughout North America over the last 25 years, the IECC designated changes to the CZ map for the first time in nearly 20 years. The outcome was that about 10% of counties in the U.S. were placed in a new CZ. In nearly all cases, the shift was to a warmer (lower) CZ, reflecting a general warming of the climate in those areas. The first set of maps below show the old CZs on the left and the new ones on the right. The shaded area across the west in the image on the right highlights the "dry" sub-climates. In most cases, the shift in CZ is relatively subtle. * https://www.jm.com/en/blog/2021/march/understanding-the-iecc-s-new-climate-zone-map/ https://www.jm.com/en/blog/2021/march/understanding-the-iecc... * https://theber.com/iecc-climate-zone-updates/ https://theber.com/iecc-climate-zone-updates/ * https://basc.pnnl.gov/images/iecc-climate-zone-map https://basc.pnnl.gov/images/iecc-climate-zone-map