Yeah. So sort of, yeah, big picture. The reason why I became interested in studying water quality from from an economist's perspective, I'm trained as an economist and study, use that frame to study a variety of environmental issues, but water quality is one of them and specifically, it's water quality in rivers, streams, lakes, coastal areas, so what we call ambient water quality, so not so much drinking water quality, which is sort of a separate set of issues regulated by a separate set of policies. Yeah, mostly the kind of water quality that we care about when we go for water based recreation, right? Kayaking or swimming or boating. If we go to the beach, or for fishing, right, recreational fishing, we care about the water quality at the water body where we are undertaking that fishing. So the reason why I got interested in that topic has to go back to my liberal arts education as an undergraduate at Amherst College where I was studying to become an ECON major, but I took a geology class, because under these liberal arts curricula, you're encouraged to kind of take a diverse set of topics. I happened to have a geology professor who spent quite a bit of time talking about water quality, and teaching us the hydrology and pollution aspects of water. And so that really got me fascinated sort of a fairly early stage on water quality issues. And more recently, I had this opportunity to work with two great collaborators, Sheila Olmstead from the LBJ School of Public Policy at UT Austin, and Jiameng Zheng, who is a postdoc currently at the University of Illinois in the business school, to take a, again on economic framework to understanding the water quality in particular the benefits of water quality, right, the kinds of benefits that I was just talking about earlier. We value water quality because it is nice to swim, boat, fish in clean water.