Should we reward the weather?

“If the weather is to blame for the bad years, how can it be that the talent, wisdom and hard work of bankers, traders and Wall Street Executives are responsible for the stupendous returns that occurred when the sun was shining” (Michael Sandel, Professor of Government at Harvard University, in New Statesman, 14 September 2009 - http://www.newstatesman.com/business/2009/09/bonuses-financial-public). Interesting starting point, and worth asking where it might lead us. One route would surely lead us back to the idea of a ‘betterment levy’ on capital gains?