roughbarked said:

Divine Angel said:

roughbarked said:

In short:

Researchers from the University of British Columbia found Sydney’s summer season had increased in length by nearly 50 days since 1990.

Weather data was measured across 10 global mid-latitude cities and found the season extended for an extra 15 days every 10 years.

Sydney’s rate of warming was more than double that of most other cities analysed, including Tokyo, Paris, Reykjavík and St Petersburg.
https://www.abc.net.au/news/2026-04-14/nsw-sydney-climate-longer-summers-study/106561816

That’s not saying how they defined it. What defines “summer”?

They must be defining it by a Northern hemisphere standard since they are in British Columbia.

Sure, but a Sydney summer is different to a Hobart summer which is different to a British Columbia summer.

It seems dv has found the answer; I was wondering if they used the same definition data for all places studied or “this is what a Sydney summer looks like, we’ll use previous data and call that summer” type deal.