Dimple Rana

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21 appearances 1 recordings 1 series first heard Jul 2026 last heard 1 Jul

Dimple Rana’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.

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More or Less · Examining the numbers behind Andy Burnham’s ‘Manchester Miracle’ · 1 Jul 2026 podcast

That's not quite right.

So there is such thing as the urban heat island effect.

And the sort of driving mechanism for that is solar radiation.

What happens is that during the day, the sun shines onto cities and is absorbed by the fabric of the city.

Things like our buildings, our roads, all of those things, they absorb solar radiation during the day.

and they emit that back at night, so you get that sort of heating effect.

Air conditioning does contribute to this, but it isn't the driving factor.

So I have seen that kind of figure of 10 to 12 degrees in some research and literature, but it varies.

So our own work

We use our own tools to model the urban heat island effect.

The biggest sort of urban heat island that we saw was about sort of seven to eight degrees

And that was during the 2022 heat waves for Madrid.

Yes, so there would be a heat island effect if we didn't have any air conditioning.

For example, in London, we certainly have an urban heat island effect.

Our own studies found it to be around four or five degrees.

And that's to do with the way that we design and build our cities.

So it is all those kind of hard surfaces that absorb solar radiation during the daytime and re-radiate it at nighttime.

And that's the predominant effect.

I mean, maybe a fraction of a degree or a degree, depending on the size of the city, the amount of air conditioning, what temperatures you're cooling to, how many buildings are being air conditioned.

There's lots of sort of variation in that.

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