Due to climate change, winters are the fastest-warming U.S. season. That puts water quality at risk in over 40 states as winter rain and snowmelt unleash frozen nutrients, like nitrogen and phosphorous, into lakes, rivers, and streams when dormant vegetation cannot absorb them.
Read more about it in the first-of-its-kind national study by Gund Institute at UVM: https://go.uvm.edu/fikb3.
Original source can be found here.