…After swimming upriver to spawn, salmon in coastal British Columbia rainforests are fed upon by bears and birds and other predators who litter the forest floor with half-eaten carcasses; these fertilize Sitka spruce and Douglas fir and literally become part of the forest itself… In addition to sustaining life on Earth, these ecosystem services generate valuable goods [and] have poured tens of billions into B.C.’s economy over the past century. But those profits have come at a steep environmental cost… The most obvious solution, protecting large swaths of nature from resource-hungry humans, simply reverses the problem. …Ban logging to protect a forest? OK, who will pay next month’s rent for those loggers? Where will that money come from? And what will the rest of us use to build our houses? …To truly escape the vicious cycle, you’d have to make conservation profitable. Which brings us to a place called the Great Bear Sea.