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It's unfortunate they don't make a GLOBAL sea surface temperature anomaly map...

oh, they do

https://www.ospo.noaa.gov/Products/ocean/sst/anomaly/

That depends on if you have an ethno-centric or a hydro-centric view of the world.

Anthro / Geo. Hydro view would be “97% of water is saline” and Ethno “4 religions account for over 77% of the world's population”

Please correct me if I’m wrong.

Ethnic is not relative to religion per se, but language and traditions.

For what I find on search engines, Ethno is relative to race, people, culture. that includes language, traditions and religions.

If it was an article written for fish, I'm sure it would matter

There's a reason we call it "the blue marble".

Effects spread wide enough can be said to be characteristic of the Earth's dynamics without needing to cover 100.000% of the surface. In the case of the article, if it affects enough of the population, we can generalize without missing the point.

Well we call it "The Blue Marble", so we kind of already do that a little bit.

What is the threshold for "world-wide" to apply?