🚀 go-pugleaf

In <BwwKo2.6vt@breeze.rsre.mod.uk> black@breeze.rsre.mod.uk (John Black) writes:

>Maybe a near comet approach could be a good thing. I did a rough calculation 
>and estimated that there must be something of the order of 10 to the power 11 
>metric tonnes of water. Maybe in 130 years time somewhere on the Earth could do
>with some water, eg the interior of large continents affected by drought. I 
>know that one of the effects of the greenhouse effect is to make sea levels 
>rise, but that is salt water, no good for crops, and still would be hundreds of
>miles from a continental desert region. The comet presumably is almost pure
>water and therefore would be ideal for crops, drinking etc.
   When they say comets are made of "ices", they don't necessarily mean H2O.
   There's lots of methane, ammonia, etc. and the even detected Cynanide in
   Halley's in 1910. Not fit for easy consumtion.
   
   Scott Young
   youngs@ccu.umanitoba.ca