Re: Heating a City

Luke Campbell <lwcamp@[EMAIL PROTECTED]
> wrote:

>There are some practical issues that come to mind.  If the city wants
>to raise the temperature, presumably this is because it is cold.  Cold
>often is associated with snow in the winter.  Heavy snow loads can
>cave in roofs.  The usual method of getting around this - sloping the
>roof - is impractical on the scale of a city.  You will need to make
>the roof strong enough to withstand the extra load of overlying snow,
>which will require more than your usual greenhouse roof.

One page I saw yesterday suggested heating wires in the roof, to be used
to melt off the snow.

>There is also issues of how you deal with rainfall - the city will
>intercept a fair amount of water, where does it all go?  Of course,

Yeah, the runoff chains will have to be robust, since a lot of water
will be funnelled to them.

-xx- Damien X-)