US Drought Fuels Soft Commodities Rally

2:10 AM ET Wed, 1 Aug 2012

"I guess if we go back a couple of years and we look at the general increase in all the commodity prices, I don't think we are going to see a repeat of that at the moment but what seems to be driving a couple of the sectors is really weather related at the moment," Jonathan Parkman, head of Agriculture at Marex Spectron, told CNBC.