Seattle announced Monday that it managed to cut emissions of greenhouse gases over the last 15 years. Too bad emissions from cars are bound to continue rising.
Meanwhile in British Columbia there's serious talk of a policy that could really make a difference: a carbon tax. The proposal would shift taxes to give incentives for lower emissions. It seems a lot more effective than just encouraging everyone to ride bicycles.
Washington and the Seattle area need to think along the same lines. This report includes a chart of Seattle's pollution sources and how hard it will be to make more progress. Next steps should be replacing the viaduct with transit and better streets and then nudging the region toward a more sustainable transportation network.