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Pourg rain a day and it's really a group of -- it will way beyond scientists, there are teachers and students and would-be astronauts and so everybody's joined together and of course it's earth day and the first anniversary of the climate agreement so there are climate scientists and environmentalists here as well. >> so it's a well, rounded crowd. >> kathleen, if will say singular threat to the environment to science, what is it in your opinion and how do you combat it? >> you mean questioning science? >> just a single -- a singular threat to the environment. >> sorry there's so much backgrou...

It's not the prettiest but it does the job. here's the state of iowa right here. this is the 30-day total. look at that purple and that white. that's between 15 and 20 inches of rain. if you go back to 60 days, if it goes back to 60 days, it will show you 30 inches of rainfall here. that's like the equivalent of a half an inch of rain a day for two months. >> and that's multiplied when you're near a river? >> exactly. these are pictures from my alma mater, iowa state university. this is the cyclones' football field in the background. this is the coliseum. this is all parking lots. it's complet...