Reasons I think weaponization of the weather (or climate) is inevitable
1) The weather is an inter connected system with many zero sum scenarios to nation states. This includes sharing of water resources and moving manufacturing in offshore locations
2) As climate change effects gradually cause increase variance in climate, this will lead to added hardship for populations. The economics branch of mechanism design might be better suited to simulate what a few degrees more or less in temperature will lead to riots, happier populations, economic stimuli just as agricultural studies focus on rainfall prediction, crop prediction etc.
3) Nation states have always had weaponry on a game theory basis. The weather being an interconnected system can be both dampened and enhanced in it’s adverse variance by man made means, and the interconnectedness can ensure deniability . Example a man made out of time El Nino effect can hamper rainfall in Indian monsoons and bring change in politics in that democracy
I still hope nations do not weaponize the weather. Unfortunately I am quite sure some of them are already thinking of both predictive and defensive mechanisms for countering climate change without any thought of how this affects other countries.
(This is continued from http://decisionstats.com/2011/05/24/weather-modifying-weapons/ , http://decisionstats.com/2011/05/08/weather-weapons/ , http://decisionstats.com/2010/01/20/dude-wheres-my-water/, http://decisionstats.com/2010/01/05/climate-die-oxide/ and http://decisionstats.com/2008/11/17/carbon-footprints-in-the-snow/
A lot of my earlier writings on weaponization of weather have been marked more by conceptual theories, added tit bits and a wee bit of creativity. I apologize for the immature lack of scholarly rigor in earlier writings as I work alone to refine my skills. )