How should I paint my roof white?

[Mark]

I thought that the painting roofs white theory had been debunked? I guess Prof Chu has shares in Dulux.

[Bob Mannix]

Oh I wasn't supporting his theory in general - there aren't enough roofs but, if there were, I was commenting on the principle of white rather than dark, which is correct.

[Man at B&Q]

[Man at B&Q]

No, you implied that the cause and effect were reversed.

MBQ

[Man at B&Q]

But it might help reduce the heat island effect in existing cities. At least then we can get realistic measurements of temperature trends.

MBQ

[Man at B&Q]

What about a giant one of these

?

MBQ

[John Rumm]

Pressure washer with a *long* hose powered by a solar panel pointed at all the white roof tops. ;-)

[Guy Dawson]

Painting roofs white is not, on it's own, going to stop let alone reverse global warming. Prof Chu's says that it would counter act 11 years worth of vehicle emissions. It's relatively easy, low tech, action that can be done so why not do it? There's no one big solution that is going to solve global warming. We're going to have to do lots of things to make a big effect.

He's just been appointed US energy secretary so I hope he's got some good ideas!

Guy

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4.4>5.4 4.4>5.4 4.4>5.4 The Reality Check's in the Post! 4.4>5.4 4.4>5.4

[geoff]

Spes Durat Avorum - my old school motto

[Guy Dawson]

Temperature readings are taken in lots of places other than cities. That's partly how we know about the heat island effect.

Guy

-- --------------------------------------------------------------------- Guy Dawson@SMTP - [e-mail] // ICBM - 6.15.16W 57.12.23N 986M

4.4>5.4 4.4>5.4 4.4>5.4 The Reality Check's in the Post! 4.4>5.4 4.4>5.4

[Donwill]

The problem is, as I see it, is:- As long as people think they can solve the

problem by small fruitless gestures,the tendency is that they will not face up

to the real problem and that is overpopulation. People need to be convinced by

propaganda, advertising, the hard sell, call it what you like, that having a large

family is a no no.

I know that it goes against religous beleifs which are very difficult to modify, but we have to try. This is where your old school motto "SPES DURAT AVORUM" should apply. It seems to me that the one overwhelming factor is the control of population. YET there seems to be none, or very little efforts in this direction.

I am not against striving, but it needs to be channeled in a fruitfull direction not wasted on mickey mouse schemes based on the Blue Peter school of engineering.

Don

[The Medway Handyman]

Long hose no probs, how big a panel we gonna need for a 2.9kW induction motor?

[geoff]

You're a newbie here - hardly an argument which hasn't been done to death here on many occasions

Err ... I've been banging on about it for years (I have no kids of my own, but two by marriage)

I can immediately think of three countries with massive populations

china - one child policy India - coercive sterilisation Indonesia (dua anak cukup - two children are enough)

which have tried to control their population growth, with varying degrees of success

[Donwill]

Actually I've contributed to this group and others under a few different names over the years.

i.e Eurwil, Lodiehr and a few others, I tried to look them up on google archive but failed.

- hardly an argument which hasn't been done to

It is very important to get the media and people in general to discuss the matter, so the more times it's mentioned the better I think.There seems to be a Media block on the subject.

Well good for you son, keep at it.

(I have no kids of my own, but

At least they've tried, and we must get people talking about it.

Don

[John Rumm]

The size of a small village ought to do it! (or one could sue John Prescott as a "pair'a'bollock" reflector)

[John Rumm]

Given the birth rate in the UK is below the sustainability point anyway, is this an issue here? (our fastest growing sector of population is the "oldest old".

[Mark]

I wonder how much environmental damage would be caused by the production & distribution of all that white paint?

[Man at B&Q]

Yeh, it's also why a lot of readings cannot be trusted as they don't come with data on how the local environment has changed over the years.

MBQ

[Mike]

Is the wrong answer.

[Andy Dingley]

Works in Canada too, via the chap in rec.woodworking who builds and sells the things commercially.