>> what's going on is global warming. the lake's ecosystem has started to have trouble and we have to do something to change the system. >> these fish that come from these lakes are really crucial to the diet here for centuries. >> exactly, you know our tradition is riso con pesce persico......it's fantastic. >> we're gonna fish right? i'm very excited. i love fishing. i never catch anything but i love fishing. >> today you will. >> today i will, i hope. >> i hope. >> and down. >> how do you know when you--can you--you can feel it? >> yeah, you feel it. >> you feel the nibble. >> and when you feel--ah, maybe you have. i think you have. yes you have. this is a nice one. (laughs) >> i could feel it. >> this is a nice one. >> three! >> that's what i'm talking about. >> who is the president? >> don't cut this sequence, make sure it's in one shot so