is weather control?
Control' is a way of manipulating the weather conditions
in order to suit man's needs.
weather can be controlled?
weather type that can be controlled to a certain extent
is rainfall. By releasing crystals of silver iodide, dry
ice2 and sea salt onto area of clouds from aeroplane,
rain can be promoted. The crystal provide a nucleus
around which the rain mass can gather. Eventually, this
becomes big enough to make a droplet - and then you've
theory that sounds good, so why isn't this done is
periods of water shortage or drought?
firstly, this system is very expensive, and only small
amounts of precipitation are created from a large amount
of materials, and effort! Additionally, scientists are as
yet unsure whether this systems 'creates' any new rain,
or simply just changes the place in which the rain falls.
It is possible that the rain 'created' may have fallen
somewhere else naturally.
it dangerous to mess with nature?
accidents have happened in the past. In 1947, a hurricane
'seeding' experiment went wrong. The course of the
hurricane changed, causing large amounts of damage. Also,
in Australia, controlled floods caused crop damage.
Because of the danger, weather control is banned in many
countries of the world.
it possible to prevent unwanted weather phenomena?
only to varying degrees of success. In China, hail causes
tremendous damage to crops. The Chinese have developed a
system by which they fire shots of chemicals at the hail
storms. The resultant effect is that the hail droplets
become rain droplets. The rain is far less damaging. This
system is only practical, and value for money, in limited
for money has meant that other systems are not used. Oil
burning can reduce fog, and this was done in the Second
World War. However, a vast amount of oil is used, and so
this is done very rarely.
as yet, weather control is normally not worthwhile?
control is a young science and has only really been
pursued in the last twenty years. It is likely that
weather control will play a more important part as it
becomes more feesible in the future.