A new report out Tuesday shows millions of wetland acres and highly erodible grassland and prairie are being plowed under and planted into row crops. This in turn causes intense soil erosion especially in a wet spring like this year. The four year, multi state study was conducted by Environmental Working Group. http://www.ewg.org/research/going-going-gone. Spokesman Craig Cox says "in the most recent report we found about 380 thousand acres of Iowa's fragile land has been converted between 2008 and 2012 and that conversion is focused in the southern two tiers of counties." Loss of wetlands has been particularly dramatic in just three states-South Dakota, North Dakota and Minnesota.