In 2004, under the artificial falls of a dam in Grand River, Ontario, Canada, with a lot of bubble a lot of men were fishing Rainbow Trout. I asked them, 'What is the bubble from? It looks like contaminated.' 'Not really. That's common for falls,' a fisherman replied. I wonder if they really didn't know it was caused by agricultural chemicals around. The fish have come up through bad smell water from Lake Erie till the dead end. Being enveloped in a late autumn fog, the sight was as if real nature lovers were enjoying an authentic nature. (Embed Colour Profile: sRGB IEC61966-2.1. Mac Display sRGB IEC61966-2.1 Native Whitepoint Standard to See.)