tom berg, chairman of a 3 g 3rd generation environmentalism many things now, italy is coping with his worst drought in 70 years. as a result, farm is in the north. the struggling to salvage that crops. as adam rainy reports from the po valley, the losses could exceed more than $3000000000.00. this is why italy's longest and most important river, the po, looks like right now. parched in it, dangerously low levels. its water provides the life blood for farmers who produce italy's most valuable crops, walking through his field of stunted corn farmer, either anna tune, yolo, the son and grand son of corn growers, shows us the damage wrought by the drought. ah christa with tongue is this year this comb will just be thrown away all because of the drought because it hasn't rained in months and this year i'm is totally wherein teresa buddha down river where the po empties into the adriatic engineer rodolfo low, 20 shows us how the current is running in reverse, from the sea to the land, because the river is so low, never looking over maps, he shows me how salt water is entering nearby farm la