If we're heading into an era of carbon pricing to combat global warming, it's just weird to be opposed to development of a large-scale hydroelectric power project.  This type of project is one of the few clean energy technologies free of intermittency issues, and also has the ability to rapidly scale output with demand to balance out the intermittency of clean technologies like wind and solar.  Municipalities like Vancouver have been pushing to eliminate use of fossil fuels in new buildings - that'll mean more demand for electricity for heating, cooling, and cooking. Even if the demand isn't there from BC, electricity can be exported to other jurisdictions that need to displace electricity produced from coal. If we can't overcome NIMBY-ism for a project like this, how can we expect a hundred different nations to work together to reduce carbon emissions?