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A comment on The Montreal Protocol was a landmark environmental success.

Re:The Montreal Protocol was a landmark environmental success by amluto on Tuesday September 26, 2017 @10:47AM (#15339109)
> Our global climate would be at least 25 per cent hotter today without the Protocol, said Garcia, a co-author of two world-avoided studies.

Hmm, without the protocol, the average daytime temperature would be (287K)*0.25 = 71.75 K hotter [1]. Phew :) I wonder what the article is trying to say.

[1] Using an average surface temperature of 14 degrees Celcius.

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Re:The Montreal Protocol was a landmark environmental success by danmaz74 on Tuesday September 26, 2017 @11:05AM (#15339284)
The phrase isn't clear at all, but immediately afterwards they add:

"By 2070 the world would have been 4.5 degrees F (2.5 degrees Celsius) hotter, a level most experts agree is disastrously high"

So, I assume the actual increase the estimated for a situation without the treaty, in 2017, is somewhere between 0 and 2.5 C.

Perhaps the 25% meant that the increase would have been 25% bigger than the increase we actually had?

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