A Espinoza wrote:
Borek wrote:
On Sun, 25 Sep 2005 01:51:45 +0200, wrote:

26º C surrounding temperatures. I'll take as a guess for the thickness
of 1 cm. Then this is a volume of 10,000m x 10,000m x .01m = 1,000,000
m^3. This is 1,000,000 metric tons of water. Then it would require that
amount in weight of NH4NO3. The worldwide production of ammonium


Adding such an amount of fertilizer to sea water is asking for troubles.
It is just like fertilizers washed from fields being dangerous for lakes.

Best,
Borek

Yup, with that amount of fertilizer, the resulting algae bloom will kill
all the fish within hundredss of miles.

If you are going to use a cooling reaction (there are several besides
that of ammonium nitrate) you may want to keep the material insides
packets as done with instant cooling packs. For example on the page I
cited, this was the method suggested to produce ice when the
electricity was out:

Making ice without machinery
http://www.madsci.org/posts/archives...5573.Ch.r.html

In this case of course you don't want the drinkable water to come in
contact with the coolant material.
You would need to connect these packets together with strong light
fibers so after use they could be collected so as not to create a
pollution problem themselves.


Bob Clark