Whether global warming is part of a natural cycle, man-made or fueled by man, it seems to be happening. How long the warming trend will last is a guess-- if it's natural.

As for effects on the PNW and its fishes, I think the real biggie will be snowpack and summer in-stream flows. Without adequate summer water, we'll see problems with chinook, steelhead, coho and cutthroat populations. On the salmon side, likely only the chum and pink will be unaffected or relatively so since they spawn low in the system and scoot once they're out of the gravel.

My $.02,

Keith