This is a very interesting lecture. I was at this event last fall and thought I would return to it this summer through these videos. This one includes a talk by Charles Tyler about the effects of chemicals on hormones. Here is a really interesting fact in the talk – on a hot summer’s day more than 75% of the water flow on some English rivers is wastewater.
Tyler’s talk begins at about 58 minutes with an introduction to him. The earlier lecture in the video by Martin Melosi may also be of interest to some. It is a combination of water policy and history with a bit of economics sprinkled in.