Parker MacCready
Environmental Threats
I'd put underwater noise from boats at the top of my list, along with shoreline armoring and overfishing. I also consider it criminal that there is so little public shoreline access. Why should we expect people to care about Puget Sound if wealthy people have most of the access?
Cultural Issues
The amazing thing around here is that there are many tribes and first nations that still exist and actively collaborate in conservation efforts.
Stewardship
Understanding that all the waters are connected is a good start - for example, of the freshwater in Puget Sound, about 10-30% of it originated in the Fraser River.