Momentum is growing for states and regions to achieve 100% fossil-free energy grids--dramatically reducing carbon emissions and climate risk. But in the Northwest, as elsewhere, the largest source of carbon pollution is not electricity generation--it's our transportation sector. Industry and the infrastructure for buildings are also large emitters of greenhouse gases. That's why it is vital for us to shift as many of these energy uses as we can from fossil fuels to clean electricity—and to do so as quickly as we are able.