Where I currently live has about the same climate as it did 20 years ago. More variability, I think (people started complaining about weird harvest times about 10 years ago, and we're now all used to chaotic year-on-year yields), but roughly the same averages. Flood infrastructure needs maintenance, but not a redesign. However, the behaviour of the migratory wildlife has changed, and you only have to travel a few dozen miles before you reach somewhere that has needed to make significant changes to their traditional climate-related infrastructure.

"A lot" doesn't mean all, and "my home isn't an example!" doesn't disprove the claim.