The first half of 2012 has been the hottest on record for the contiguous United States. The heat, coupled with lack of rain, has much of the country's farmland in a severe drought -- and the pain of ... more 

The first half of 2012 has been the hottest on record for the contiguous United States. The heat, coupled with lack of rain, has much of the country's farmland in a severe drought -- and the pain of US farmers is spreading to agriculture and consumers abroad. Duration: 02:19 less