Today's conversations on the Green Radio Hour with Jon Bowermaster focus on a pair of threats to the Hudson River, both uniquely invisible to the naked eye: Another thing we can thank climate change for altering is an increase in salinity in the Hudson; the combo of more storms, more rain, more drought, means that the percentage of salt in the river is rising, and has broached Poughkeepsie's drinking water. Water treatment expert Paul Malmrose, from Saugerties, explains. And last week the NY State Public Service Commission gave thumbs up to the Champlain Hudson Power Express project which will deliver electricity from First Nations land, underwater to New York City. Listen in on a press conference held the day before the decision, featuring First Nations reps from across Canada and Labrador.